database error when I try to edit or add new usergroup

[MysCha]

or u can manualy drop a field on sql

open ur phpmyadmin
and search sql where u install ur forum

and search this prefix vb_usergroup
open the structure
then u can find anything field called " MGC "
check list and drop them

`title` = 'Moderators',
`description` = '',
`usertitle` = 'Moderator',
`opentag` = '',
`closetag` = '',
`passwordexpires` = '0',
`passwordhistory` = '0',
`mgc_cb_evo_permissions` = '0',
`mgc_cb_evo_nbmsg_show` = '',
`mgc_cb_evo_nbmsg_perday_show` = '',
`forumpermissions` = '3928575',
`genericpermissions` = '1609504463',
`attachlimit` = '0',
`pmquota` = '50',
`pmpermissions` = '7',
`pmsendmax` = '5',
`calendarpermissions` = '63',
`wolpermissions` = '15',
`adminpermissions` = '0',
`genericpermissions2` = '1',
`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',
`albumpermissions` = '255',
`albumpicmaxwidth` = '600',
`albumpicmaxheight` = '600',
`albumpicmaxsize` = '100000',
`albummaxpics` = '100',
`albummaxsize` = '0',
`usercsspermissions` = '31',
`visitormessagepermissions` = '63',
`socialgrouppermissions` = '511'
WHERE usergroupid=7;

* drop the red bold