bbpress integration with WPMU

I’ve setup WPMU on local machine with WAMP.
And setup first blog.
Installed bbpress on local machine, and edited bb-config-sample.php
and saved as bb-config.php resourses from:
https://www.tamba2.org.uk/wordpress/bbpress/install/

Step 1 – Database configuration ? completed
Step 2 – WordPress integration (optional) ? completed
Step 3 – Site settings ? completed

I then thought that bbpress was integrated with WPMU only to discover its on its own domain, I have no problem login in.
Just want to integrate bbpress with WPMU

bbPress database error: [Table ‘wordpress-mu.wp_options’ doesn’t exist]
SELECT option_value FROM wp_options WHERE option_name = ‘secret’ LIMIT 1

Additional resourses I read with reagrds to bbpress and WPMU:
https://weblogtoolscollection.com/archives/2009/05/03/buddypress-bbpress-integration-plugin-bug/
https://trac.buddypress.org/browser/trunk/bp-forums/installation-readme.txt
https://codex.buddypress.org/getting-started/installing-buddypress/
https://codex.buddypress.org/getting-started/installing-wordpress-mu/

Thanks