[Logician]

Replace:

PHP Code:

// get administrators & super moderators **********************************************************
$users = $DB_site->query("
    SELECT
        $locationfieldselect usergroup.title, user.username, user.userid, user.invisible, user.receivepm,
        user.usergroupid, user.lastactivity, user.lastvisit
        FROM usergroup
        LEFT JOIN user ON (usergroup.usergroupid = user.usergroupid)
        LEFT JOIN userfield ON (userfield.userid = user.userid)
        WHERE usergroup.showgroup = 1
    "); 


AS:

PHP Code:

// get administrators & super moderators **********************************************************
$users = $DB_site->query("
    SELECT
        $locationfieldselect usergroup.title, user.username, user.userid, user.invisible, user.receivepm,
        user.usergroupid, user.lastactivity, user.lastvisit
        FROM usergroup
        LEFT JOIN user ON (usergroup.usergroupid = user.usergroupid)
        LEFT JOIN userfield ON (userfield.userid = user.userid)
        WHERE usergroup.showgroup = 1 AND usergroup.usergroupid!=11 
    "); 


And how come this fix is not already included in the hack?