[sv1cec]

All your errors are related. The table user has not the proper columns in it. First of all, here is the query that you should use to add all the columns in this table:

ALTER TABLE `".TABLE_PREFIX."user` 
add `warnings` int(5) default '0',
add `warning_level` int(15) default '0', 
add `warning_bans` int(2) default '0',
add `alerts` int(5) default '0'

Also, please open your file kill_old_bans.php and find:

PHP Code:

$bans=$warn['warning_bans']-1; 


Right below that add:

PHP Code:

if ($bans<0)
        {
            $bans=0;
        } 


This was not the cause of your error, still you found me a bug in that script.

Oh, one more thing. Are you using a table prefix in your database? From the error messages, it looks as if you are not. If you are not, remove the ".TABLE_PREFIX." from the above query.

Let me know if you got it working.