[Rafael Dourado]

When I try to have access to WordPress functions (including that line said on documentation) I get this error:

Fatal error: Cannot redeclare _mb_substr() (previously declared in /home/aedi/public_html/wp-includes/compat.php:86) in /home/aedi/public_html/bbpress/bb-includes/backpress/functions.compat.php on line 108

When I get to line 108, that’s what I see:

if ( !function_exists( ‘_mb_strcut’ ) ) {

function _mb_substr

_mb_strcut??? Shouldn’t be _mb_substr?