[Calibre_k]

When I delete

function isBanned($user) 
{ 
    return (isBanned_Check($user['userid'], 'shout_banned_users') || isBanned_Check($user['usergroupid'], 'shout_banned_usergroups'));     
} 

function isBanned_Check($bash, $against) 
{ 
    global $vbulletin; 
    return in_array($bash, iif($vbulletin->options[$against], explode(',', $vbulletin->options[$against]), array())); 
}

Fatal error: Call to undefined function: isbanned() in /home/forum/index.php(536) : eval()'d code on line 198

I cant find hook location in drop down.