Another DB error - This one is easier
 

When trying to update a user group* I get a MySQL db error. The error shows this :

MySQL Error : Unknown column 'ms_unanswered_threads_permissions' in 'field list'

I have had a mod installed to be able to search unanswered threads but it was always disabled. I then uninstalled it from vbulletin and now inside editing a user group* the very first column (which is where the option for this was) is now blank with only a "yes" or "no" radio button. No matter what you select* this error is produced. How do I remove that column completely to remove that error?