And now I'm getting the following error when attempting to delete a group:

Control panel message
Script: /home/ahjeonggeun/illusionarylabyrinth.net/forums/admin/dogroupmanage.php
Line#: 81
SQL Error: Unknown column 'uid' in 'where clause'
SQL Error #: 1054
Query: select USER_ID as uid from ubbt_USER_GROUPS where GROUP_ID = 32 and USER_ID = (select distinct USER_ID from ubbt_USER_GROUPS where GROUP_ID <> 32 and USER_ID = uid)