Modifing User Group Error

[Warion]

I have no clue but i get this response when I either to edit any of my user groups or try to create one. Please help.

Invalid SQL:
UPDATE nec_usergroup SET

### UPDATE QUERY GENERATED BY fetch_query_sql() ###
`title` = 'Registered Users',
`description` = '',
`usertitle` = '',
`opentag` = '',
`closetag` = '',
`passwordexpires` = '0',
`passwordhistory` = '0',
`forumpermissions` = '782591',
`attachlimit` = '0',
`pmquota` = '50',
`pmpermissions` = '3',
`pmsendmax` = '5',
`calendarpermissions` = '23',
`wolpermissions` = '1',
`adminpermissions` = '0',
`genericpermissions` = '472389251',
`genericoptions` = '62',
`profilepicmaxwidth` = '100',
`profilepicmaxheight` = '100',
`profilepicmaxsize` = '65535',
`avatarmaxwidth` = '80',
`avatarmaxheight` = '80',
`avatarmaxsize` = '20000',
`signaturepermissions` = '237567',
`sigpicmaxwidth` = '500',
`sigpicmaxheight` = '100',
`sigpicmaxsize` = '10000',
`sigmaxrawchars` = '1000',
`sigmaxchars` = '500',
`sigmaxlines` = '0',
`sigmaxsizebbcode` = '7',
`sigmaximages` = '4',
`mgc_cb_evo_permissions` = '0',
`mgc_cb_evo_nbmsg_show` = '',
`mgc_cb_evo_nbmsg_perday_show` = ''
WHERE usergroupid=2;

MySQL Error : Unknown column 'mgc_cb_evo_permissions' in 'field list'
Error Number : 1054
Date : Wednesday, March 12th 2008 @ 11:19:19 PM
Username : Laundo
Classname : vB_Database

[Dismounted]

You have uninstalled a modification and have forgotten to remove its files from your server. THe file specifically, is a bitfield_*.xml file in your /forumroot/includes/xml directory.