Re: Nothing happening
https://codex.buddypress.org/getting-started/installing-group-and-sitewide-forums/
Successful installation of forums for groups would create a bb-config.php file at level where your wp-config.php is located. Double-check that the database information in the bb-config.php file is correct. If not, correct the information and run the forums for groups again. Also check that there are 7 new bbPress tables created in your database, they should be there.
