[HMBeaty]

To sum it all up, and again say that this mod is not causing the issue that you're having, the ONLY query this modification executes is this:

    $spiders = $db->query_read("
        SELECT useragent
        FROM " . TABLE_PREFIX . "session
        WHERE lastactivity > " . intval($datecut) . "
            AND userid = 0
    ");

Nothing about phrasegroup, or language, or anything. It selects from the table session the users useragent. Basically the same as if you were to view the Who's Online page. It reads what's already there, and prints it out on your who's online.