[@mercime Participant 14 years, 9 months ago]

== But do i need to install the site wide bbPress forum in order to make the group forum works? ==
No. I never said that. I just linked to area where there’s a screenshot of the database with 7 forums tables so you could compare yours. Were the 7 bbPress tables for the forums generated in your database?

Also, double-check if the database information in your bb-config.php is correct.