Re: Ugly error on main page
Ah I see. That exact error has been reported by someone else using the latest bbPress together with Hidden forums… and they even suggested a patch to functions.bb-forums.php that they claim fixed the issue!
https://bbpress.org/forums/topic/when-there-is-no-forum-to-display-warning-is-generated
Or if I’m reading this correctly, you could also create a general folder and leave it as public… so that there’s always at least one forum, and it’s never null?