Ошибка ANTISPAM: User ID not valid при отправке ПС

$id_key = $_POST[$_SESSION['id_key']];            
    if( $id_key == "" or $id_key != $dle_login_hash ) $stop .= "<li>ANTISPAM: User ID not valid</li>";
    if (clean_url($_SERVER['HTTP_REFERER']) != clean_url($_SERVER['HTTP_HOST'])) $stop .= "<li>ANTISPAM: User ID not valid</li>";

if( $config['sec_addnews'] ) {
        $id_key = $_POST[$_SESSION['id_key']];            
        if( $id_key == "" or $id_key != $dle_login_hash ) $stop .= "<li>ANTISPAM: User ID not valid</li>";
        if (clean_url($_SERVER['HTTP_REFERER']) != clean_url($_SERVER['HTTP_HOST'])) $stop .= "<li>ANTISPAM: User ID not valid</li>";
    }