[Robin W]

just taken a quick look.

yes it looks like it will show the sub forums of a forum ID you enter, but not the parent forums as well.

I should say I’m not a bbpress author, and after a check of the code it is not an easy change to fix

[Robin W]

the code is valid – I suspect you have a copy/paste issue – sometimes a ‘ becomes corrupted,

Can you post exactly what you have in your file

[linguabuddy]

Looks like something may have changed as this code is now producing a fatal error.

I used the second snippet to edit the reply emails but while the email send has been successfully modified (and is no longer bouncing), the user now gets a white screen…

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘my_bbp_no_reply_email’ not found or invalid function name in /home/customer/www/[domain]/public_html/wp-includes/class-wp-hook.php on line 287

Has something been updated in the codex?

[aliforty]

I was familiar, just a brain freeze early on Monday 🙂

But please let me know what arguments I should pass that would get the outcome I am hoping for. I was wanting for “\r \n” in TinyMCE to be replaced with <br /> tags. The WordPress database was not saving those escaped characters or at the very least wasn’t displaying them back. Eerything was being shown in one line. Teeny and TinyMCE is enabled.

For the time being, I did find an alternative solution. Replaced the “\r \n” with <br /> for the posts and disabled the bbp_code_trick_reverse filter that was removing them later.

function bbp_convert_reply_breaks_to_tags($output, $args, $post_content){
        $text = str_replace(array("\r\n", "\n", "\r"), "<br />", $post_content);
        return $text;
    }

  function bbp_convert_topic_and_forum_breaks_to_tags($post_content){
        $text = str_replace(array("\r\n", "\n", "\r"), "<br />", $post_content);
        return $text;
    }

 add_filter('bbp_new_reply_pre_content', array($this, 'bbp_convert_reply_breaks_to_tags'), 10, 3);
        add_filter('bbp_new_topic_pre_content', array($this, 'bbp_convert_topic_breaks_to_tags'), 10, 1);
        add_filter('bbp_new_forum_pre_content', array($this, 'bbp_convert_topic_and_forum_breaks_to_tags'), 10, 1);
        remove_filter('bbp_get_form_reply_content', 'bbp_code_trick_reverse');
        remove_filter('bbp_get_form_forum_content', 'bbp_code_trick_reverse');
        remove_filter('bbp_get_form_topic_content', 'bbp_code_trick_reverse');

[Jan]

This is my first post in this forum, so I apologize if this may sound like a no-brainer question.

I went through a number of threats and understood that adding a topic tag cloud to a search page requires…

(1) activation of the tagging feature in the forum settings (Done)
(2) adding an HTML widget to the respective sidebar and (Done)
(3) pasting the relevant HTML code snippet into the widget. (Open)

Where can I find the HTML required for step number 3?

Any advice is much appreciated.

Thanks,
Jan

[Robin W]

apply_filters( 'bbp_get_the_content', $output, $args, $post_content );

in

bbpress 2.6.6\includes\common\template.php

line 1940

should do it

[Back to Front]

Yes you could use

.bbp-reply-post-date {
    display: none;
}

to hide you bbpress reply post date.

But to display the post modified date you would need to add this function in you child theme templates whereever you want to display, eg replace
bbp_topic_post_date();
with
the_modified_date();
in templates/content-single-topic-lead.php

[r-a-y]

For the ‘forum’ and ‘topic’ slug in a BuddyPress groups URL, see: https://buddypress.trac.wordpress.org/ticket/3745#comment:13

You cannot remove it, but you can potentially rename it via code.

[r-a-y]

When you set up BuddyPress, you had to set up a WordPress page that is associated to Groups.

Go to the admin dashboard and visit “Pages”. Next, find the Groups page and edit the slug for the page to dev and that will fix the issue for you.

[Ricsca2]

I migrated a forum from vbulletin but now the customized smileys do not appear but I only see their code such as the writing: cgrd: or: by2:, how can I connect their codes to the smileys that I upload in ftp?

Thank

[o2disegno]

The footer of the page was broken when I enter any page of the forum but the rest of the page works perfectly, only when I enter the pages of the forum it broke. I use wpbakery to build the page.

The only page of the forum that works well is the one that I created by placing the shortcode: https://dermomen.com/foros-dermomen/ the rest of the pages break the footer and show it in text.

Image of the problem:

Preguntas de los novatos

I hope you can help me. Thanks.

[lolataylor1]

WordPress 5.8
bbPress 2.6.6
BuddyPress 9.0.0
Astra Theme 3.6.5

Help! I have read every forum post about creating new custom roles in bbPress, but it still isn’t working for me. The created role names are displaying on my Users page in my Admin dashboard, but the roles themselves are not working as intended. When I assign a user a forum role, it is adding it under the “Roles” [i.e., Subscriber (WP Role), Founder (bbPress Role)] and not “Forum Roles.” I tested the different user role settings and they, too, are not working.

Am I missing something or doing something wrong? I’m new to bbPress and very frustrated after spending hours trying to get this to work.

This is the code I have create and placed in my Code Snippet plugin. The forum is being added to a paid members only website, so the URL would not be useful.


function authorready_add_new_roles( $bbp_roles ) {
$bbp_roles['bbp_probation'] = array(
'name' => 'Probation',
'capabilities' => custom_capabilities( 'bbp_probation' )
);

$bbp_roles['bbp_subscriber'] = array(
'name' => 'Subscriber',
'capabilities' => custom_capabilities( 'bbp_subscriber' )
);

$bbp_roles['bbp_founder'] = array(
'name' => 'Founder',
'capabilities' => custom_capabilities( 'bbp_founder' )
);

$bbp_roles['bbp_leader'] = array(
'name' => 'Group Leader',
'capabilities' => custom_capabilities( 'bbp_leader' )
);

$bbp_roles['bbp_moderator'] = array(
'name' => 'Moderator',
'capabilities' => custom_capabilities( 'bbp_moderator' )
);

$bbp_roles['bbp_administrator'] = array(
'name' => 'Administrator',
'capabilities' => custom_capabilities( 'bbp_administrator' )
);

return $bbp_roles;
}

add_filter( 'bbp_get_dynamic_roles', 'authorready_add_new_roles', 1 );

function authorready_add_role_caps_filter( $caps, $role )
{
/* Only filter for roles we are interested in! */
if( $role == 'bbp_probation' )
$caps = custom_capabilities( $role );

if( $role == 'bbp_subscriber' )
$caps = custom_capabilities( $role );

if( $role == 'bbp_founder' )
$caps = custom_capabilities( $role );

if( $role == 'bbp_leader' )
$caps = custom_capabilities( $role );

if( $role == 'bbp_moderator' )
$caps = custom_capabilities( $role );

if( $role == 'bbp_administrator' )
$caps = custom_capabilities( $role );

return $caps;
}

add_filter( 'bbp_get_caps_for_role', 'authorready_add_role_caps_filter', 10, 2 );

function custom_capabilities( $role )
{
switch ( $role )
{

/* Capabilities for 'probation' role */
case 'bbp_probation':
return array(
// Primary caps
'spectate' => true,
'participate' => false,
'moderate' => false,
'throttle' => false,
'view_trash' => false,

// Forum caps
'publish_forums' => false,
'edit_forums' => false,
'edit_others_forums' => false,
'delete_forums' => false,
'delete_others_forums' => false,
'read_private_forums' => false,
'read_hidden_forums' => false,

// Topic caps
'publish_topics' => false,
'edit_topics' => false,
'edit_others_topics' => false,
'delete_topics' => false,
'delete_others_topics' => false,
'read_private_topics' => false,

// Reply caps
'publish_replies' => false,
'edit_replies' => false,
'edit_others_replies' => false,
'delete_replies' => false,
'delete_others_replies' => false,
'read_private_replies' => false,

// Topic tag caps
'manage_topic_tags' => false,
'edit_topic_tags' => false,
'delete_topic_tags' => false,
'assign_topic_tags' => false,
);

/* Capabilities for 'subscriber' role */
case 'bbp_subscriber':
return array(
// Primary caps
'spectate' => true,
'participate' => true,
'moderate' => false,
'throttle' => false,
'view_trash' => false,

// Forum caps
'publish_forums' => false,
'edit_forums' => false,
'edit_others_forums' => false,
'delete_forums' => false,
'delete_others_forums' => false,
'read_private_forums' => true,
'read_hidden_forums' => false,

// Topic caps
'publish_topics' => false,
'edit_topics' => false,
'edit_others_topics' => false,
'delete_topics' => false,
'delete_others_topics' => false,
'read_private_topics' => true,

// Reply caps
'publish_replies' => true,
'edit_replies' => true,
'edit_others_replies' => false,
'delete_replies' => true,
'delete_others_replies' => false,
'read_private_replies' => true,

// Topic tag caps
'manage_topic_tags' => false,
'edit_topic_tags' => false,
'delete_topic_tags' => false,
'assign_topic_tags' => false,
);

/* Capabilities for 'founder' role */
case 'bbp_founder':
return array(
// Primary caps
'spectate' => true,
'participate' => true,
'moderate' => false,
'throttle' => false,
'view_trash' => false,

// Forum caps
'publish_forums' => false,
'edit_forums' => false,
'edit_others_forums' => false,
'delete_forums' => false,
'delete_others_forums' => false,
'read_private_forums' => true,
'read_hidden_forums' => false,

// Topic caps
'publish_topics' => false,
'edit_topics' => false,
'edit_others_topics' => false,
'delete_topics' => false,
'delete_others_topics' => false,
'read_private_topics' => true,

// Reply caps
'publish_replies' => true,
'edit_replies' => true,
'edit_others_replies' => false,
'delete_replies' => true,
'delete_others_replies' => false,
'read_private_replies' => true,

// Topic tag caps
'manage_topic_tags' => false,
'edit_topic_tags' => false,
'delete_topic_tags' => false,
'assign_topic_tags' => false,
);

/* Capabilities for 'group leader' role */
case 'bbp_leader':
return array(
// Primary caps
'spectate' => true,
'participate' => true,
'moderate' => true,
'throttle' => false,
'view_trash' => false,

// Forum caps
'publish_forums' => false,
'edit_forums' => false,
'edit_others_forums' => false,
'delete_forums' => false,
'delete_others_forums' => false,
'read_private_forums' => true,
'read_hidden_forums' => false,

// Topic caps
'publish_topics' => false,
'edit_topics' => false,
'edit_others_topics' => false,
'delete_topics' => false,
'delete_others_topics' => false,
'read_private_topics' => true,

// Reply caps
'publish_replies' => true,
'edit_replies' => true,
'edit_others_replies' => true,
'delete_replies' => true,
'delete_others_replies' => true,
'read_private_replies' => true,

// Topic tag caps
'manage_topic_tags' => false,
'edit_topic_tags' => false,
'delete_topic_tags' => false,
'assign_topic_tags' => true,
);

/* Capabilities for 'moderator' role */
case 'bbp_moderator':
return array(
// Primary caps
'spectate' => true,
'participate' => true,
'moderate' => true,
'throttle' => true,
'view_trash' => true,

// Forum caps
'publish_forums' => false,
'edit_forums' => false,
'edit_others_forums' => false,
'delete_forums' => false,
'delete_others_forums' => false,
'read_private_forums' => true,
'read_hidden_forums' => false,

// Topic caps
'publish_topics' => true,
'edit_topics' => true,
'edit_others_topics' => false,
'delete_topics' => false,
'delete_others_topics' => false,
'read_private_topics' => true,

// Reply caps
'publish_replies' => true,
'edit_replies' => true,
'edit_others_replies' => false,
'delete_replies' => true,
'delete_others_replies' => true,
'read_private_replies' => true,

// Topic tag caps
'manage_topic_tags' => false,
'edit_topic_tags' => true,
'delete_topic_tags' => true,
'assign_topic_tags' => true,
);

/* Capabilities for 'administrator' role */
case 'bbp_administrator':
return array(
// Primary caps
'spectate' => true,
'participate' => true,
'moderate' => true,
'throttle' => true,
'view_trash' => true,

// Forum caps
'keep_gate' => true,
'publish_forums' => true,
'edit_forums' => true,
'edit_others_forums' => true,
'delete_forums' => true,
'delete_others_forums' => true,
'read_private_forums' => true,
'read_hidden_forums' => true,

// Topic caps
'publish_topics' => true,
'edit_topics' => true,
'edit_others_topics' => true,
'delete_topics' => true,
'delete_others_topics' => true,
'read_private_topics' => true,

// Reply caps
'publish_replies' => true,
'edit_replies' => true,
'edit_others_replies' => true,
'delete_replies' => true,
'delete_others_replies' => true,
'read_private_replies' => true,

// Topic tag caps
'manage_topic_tags' => true,
'edit_topic_tags' => true,
'delete_topic_tags' => true,
'assign_topic_tags' => true,
);

break;

default :
return $role;
}
}


[mairag]

Thank you Robin.

I did the change but didn’t solve the issue, let’s see if OP had more luck.

This is my updated code for the new role Crochetera.

// bbPress custom role

add_action ('wp_loaded' , 'load_new_roles') ;
function load_new_roles () {
	add_filter( 'bbp_get_dynamic_roles', 'add_new_roles', 1 );
	add_filter( 'bbp_get_caps_for_role', 'add_role_caps_filter', 10, 2 );
}
 
function add_new_roles( $bbp_roles ){
    /* Add a role called crochetera */
    $bbp_roles['bbp_crochetera'] = array(
        'name' => 'Crochetera',
        'capabilities' => custom_capabilities( 'bbp_crochetera' )
        );
 
    return $bbp_roles;
}
 
function add_role_caps_filter( $caps, $role ) {
    /* Only filter for roles we are interested in! */
    if( $role == 'bbp_crochetera' )
        $caps = custom_capabilities( $role );
 
    return $caps;
}
 
function custom_capabilities( $role ){
    switch ( $role ) {
 
        /* Capabilities for 'crochetera' role */
        case 'bbp_crochetera':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => false,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => false,
                'edit_topics'           => false,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => false,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => false,
            );
 
            break;
 
        default :
            return $role;
    }
}

[myblackf150]

Hello,

I copied the code forms-topic to create a very simple form for use in only one forum.
How I may please pre-select the forum from the drop-down that selects which forum to post by default? I’d assume it would require the forum ID but I do not know how to make it select to that forum by default.

Thank you for any assistance.

[Robin W]

If that is not clear, post your code and I’ll give back the correct version.

[Robin W]

ok, thanks.

It is a load order issue, so we need to add the filters once everything is loaded.

So for @techinbermudas example we would have

add_action ('wp_loaded' , 'load_new_roles') ;

function load_new_roles () {
	add_filter( 'bbp_get_dynamic_roles', 'add_new_roles', 1 );
	add_filter( 'bbp_get_caps_for_role', 'add_role_caps_filter', 10, 2 );
}

function add_new_roles( $bbp_roles )
{
    $bbp_roles['bbp_gcamdev'] = array(
        'name' => 'GCam Developer',
        'capabilities' => custom_capabilities( 'bbp_gcamdev' )
        );
     $bbp_roles['bbp_romdev'] = array(
        'name' => 'ROM Developer',
        'capabilities' => custom_capabilities( 'bbp_romdev' )
        );
    $bbp_roles['bbp_kerneldev'] = array(
        'name' => 'Kernel Developer',
        'capabilities' => custom_capabilities( 'bbp_kerneldev' )
        );
    $bbp_roles['bbp_modder'] = array(
        'name' => 'Modder',
        'capabilities' => custom_capabilities( 'bbp_modder' )
        );
    $bbp_roles['bbp_member'] = array(
        'name' => 'Member',
        'capabilities' => custom_capabilities( 'bbp_member' )
        );
 
    return $bbp_roles;
}

function add_role_caps_filter( $caps, $role )
{
    /* Only filter for roles we are interested in! */
    if( $role == 'bbp_gcamdev' )
        $caps = custom_capabilities( $role );
 
    if( $role == 'bbp_romdev' )
        $caps = custom_capabilities( $role );
 
    if( $role == 'bbp_kerneldev' )
        $caps = custom_capabilities( $role );

    if( $role == 'bbp_modder' )
        $caps = custom_capabilities( $role );

    if( $role == 'bbp_member' )
        $caps = custom_capabilities( $role );

    return $caps;
}
 

 
function custom_capabilities( $role )
{
    switch ( $role )
    {
        case 'bbp_gcamdev':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => true,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => true,
                'edit_topics'           => true,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => true,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => true,
            );

        case 'bbp_romdev':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => true,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => true,
                'edit_topics'           => true,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => true,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => true,
            );

        case 'bbp_kerneldev':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => true,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => true,
                'edit_topics'           => true,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => true,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => true,
            );

        case 'bbp_modder':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => true,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => true,
                'edit_topics'           => true,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => true,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => true,
            );
 

        case 'bbp_member':
            return array(
                // Primary caps
                'spectate'              => true,
                'participate'           => true,
                'moderate'              => false,
                'throttle'              => false,
                'view_trash'            => false,
 
                // Forum caps
                'publish_forums'        => false,
                'edit_forums'           => false,
                'edit_others_forums'    => false,
                'delete_forums'         => false,
                'delete_others_forums'  => false,
                'read_private_forums'   => true,
                'read_hidden_forums'    => false,
 
                // Topic caps
                'publish_topics'        => false,
                'edit_topics'           => false,
                'edit_others_topics'    => false,
                'delete_topics'         => false,
                'delete_others_topics'  => false,
                'read_private_topics'   => true,
 
                // Reply caps
                'publish_replies'       => true,
                'edit_replies'          => true,
                'edit_others_replies'   => false,
                'delete_replies'        => false,
                'delete_others_replies' => false,
                'read_private_replies'  => true,
 
                // Topic tag caps
                'manage_topic_tags'     => false,
                'edit_topic_tags'       => false,
                'delete_topic_tags'     => false,
                'assign_topic_tags'     => true,
            );
 
            break;
 
        default :
            return $role;
    }
}

which adds the filter once the theme and all plugins are loaded.

[r-a-y]

How are you setting up the forum for your BuddyPress group?

You might want to check out this guide:

Installing Group and Sitewide Forums

[Robin W]

@techinbermudas @mairag where are you putting this code?

[r-a-y]

You don’t need to import. That codex page is referring to an older version of bbPress (v1.0) when it was required to do an import to bbPress v2.0.

[ShadowKatmandu]

WordPress version 5.8
BuddyPress version 9.0.0
bbPress version 2.6.6

I have attempted to import from BuddyPress by going to Tools > Forums, Import Forums. I entered all of the needed information and clicked Start. The progress box reported nothing was imported, but our BuddyPress Groups has 1 forum with a fair number of messages.

I found documentation at https://codex.bbpress.org/getting-started/importing-data/import-forums/bbpress-1-x-buddypress-group-forums/ which purports to be documentation for importing from BuddyPress groups but only links to what appears to be a possibly out-of-date article about importing from an older version of bbPress.

What is the best method to migrate from BuddyPress 9.0 to bbPress 2.6.6?

[r-a-y]

Technically, an image is a link so that would count as a hyperlink.

This is a legitimate problem because bbPress inherited the discussion settings from WordPress in bbPress 2.6.0. I created a ticket to perhaps create separate forum moderation settings, which would address this. See https://bbpress.trac.wordpress.org/ticket/3352.

A workaround is to bump the link limit to a higher number or use some code to bypass moderation.

[Robin W]

nothing I know of doe this at the moment

If it’s a fixed list then just cascade eg

[bbp-single-topic id=4096]
[bbp-single-topic id=4097]
[bbp-single-topic id=4099]
[bbp-single-topic id=4099]

if you’re doing it programmatically then just do the ‘echo_shortcode’ in a foreach loop

or crack open /inclues/common/shortcodes and you can use the code form there to create what you want

[pave1]

I’m trying to move “Favorites” page to Ultimate Member Profile page by running bbp_get_template_part( 'user', 'favorites' ); on that page, but I get “Nothing to show” message. Do I need to preload/initialize something before calling that? Thanks

[Robin W]

that’s not code from bbpress.

it could be a theme or plugin issue

Themes

As a test switch to a default theme such as twentytwenty, and see if this fixes.

Plugins

If that doesn’t work, also deactivate all plugins apart from bbpress and see if this fixes. if it does, re-enable one at a time to see which is causing the error.

If you cannot do this to your site (say because it is live) then use the ‘troubleshooting’ features of this plugin to let you test without affecting other users

Health Check & Troubleshooting

Then come back

[Robin W]

This should do it

add_filter( 'bbp_get_breadcrumb', 'rew_remove_xx_breadcrumb' , 10 , 4) ;

function rew_remove_xx_breadcrumb ($trail, $crumbs, $r, $args) {
	if (strpos($trail,  'Forum Name') !== false) {
    $trail = '' ;
	}
	return $trail;
}

replace ‘Forum Name’ with the name of the forum you want to exclude

but it would also get rid of the breadcrumb in any forums for a topic with the forum name as the topic title – ie it is just searching for any occurrence of the text in the breadcrumb string !!