@totoff Hi. You’re using a premium theme, Dynamix. Please change to the Twenty Fourteen theme and check if issue is resolved. Please contact the premium theme author as we have no access to the theme.
re disable group creation for all users except admin -> you can do this in Settings > BuddyPress > Settings — Groups
re automatically link user to several groups -> no plugin that I know of does this. You could either code this or wait for a developer to create one or hire a developer to make a plugin
@totoff Active 1 year, 9 months ago