BuddyPress.org

Sabuntu, no need to start a new thread.

Anyway for this:

define ( 'BP_ROOT_BLOG', 1 );

define( 'BP_AVATAR_UPLOAD_PATH', '/var/www/wp-content/blogs.dir/3/files' );

define( 'BP_AVATAR_URL', 'hxxp://community.example.com' );

– Change your BP_AVATAR_UPLOAD_PATH so it matches your server filepath, don’t use the example code listed in the guide.

– Change the BP_AVATAR_URL to your domain and not the example code listed in the guide

—

Is this site live at the moment? If you had BP installed on the root before, why not use revert to a backup (if you have one)?