[Sherry22]

Does anyone know why this error happens?
Warning: substr() expects parameter 1 to be string, array given in /home/homewo31/public_html/wp-content/plugins/buddypress/bp-forums/bbpress/bb-includes/class.bb-query.php

I deleted groups and forums and recreated and this is showing for my 2nd group.

[Robin W]

This seems to be a buddypress issue – presume you posted this on their support site also?