BuddyPress.org

I installed buddypress into my main site. I didn’t like the combination and uninstalled with the intention of reinstalling as a sub domain installation. Now my site is looking for http://www.environmentaide.org/activity. Activity no longer exists and the plugin has been removed. I’ve looked everywhere for the pointer to revert to my WordPress default domain.
How do I remove the activity pointer and move on to reinstall buddypress as a separate site?