Userfield in usergroup problem

[Mrcransie]

I've added a hack I dunno which and it's added some userfields which I dunno how to remove.

Here's a screenie of it: http://www.movieshares.co.uk/images/1199904879.PNG

When I try and save anything I edit, I get this message.

MySQL Error : Unknown column 'mgccustomusergroupperms' in 'field list'
Error Number : 1054
Date : Friday, January 18th 2008 @ 01:34:29 AM
Script : http://www.movieshares.co.uk/admincp/usergroup.php?do=update
Referrer : http://www.movieshares.co.uk/admincp/usergroup.php?do=edit&usergroupid=2
IP Address : (removed)
Username : (removed)
Classname : vB_Database
MySQL Version : 4.1.22-standard

[Lynne]

Doing a search of these forums for "mgccustomusergroupperms" turns up a couple of Mods with MGC in the title - a chatbox and a projects light. Did you used to have either of those installed?

[Dismounted]

You have forgotten to remove the files of a modification after uninstalling it. The files are in /includes/xml.