[Oblivion Knight]

I got this error e-mail sent to me this morning.. I assume it's related to this plugin.

Database error in vBulletin 3.5.0 Release Candidate 3:

Invalid SQL:

SELECT userid, username, email, languageid FROM user
WHERE usergroupid IN ()
AND inactivitytag=0
AND lastpost=0
AND pmtotal <= 0
AND lastactivity < UNIX_TIMESTAMP(DATE_ADD(NOW(), INTERVAL -180 DAY));

MySQL Error : You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near ')
AND inactivitytag=0
AND lastpost=0
AND pmto
Error Number : 1064
Date : Wednesday, September 14th 2005 @ 06:43:27 AM
Script : http://www.gamerseuphoria.com/forum/...p?&rand=116136
Referrer :
IP Address : xx.xxx.xxx.xx
Username : Unregistered
Classname : vb_database

Any ideas?