I found the error at least. But since I am no can't write code I don't understand it.
in
vbSupport.php I find the code:
PHP Code:
SELECT post.postid, IF(post.userid = 0, post.username, user.username) AS username,
post.pagetext, post.allowsmilie, post.userid, post.dateline
FROM " . TABLE_PREFIX . "vbs_ticket_post AS post
LEFT JOIN " . TABLE_PREFIX . "user AS user ON(user.userid = post.userid)
WHERE post.visible = 1
$globalignore
AND post.threadid = $threadinfo[threadid]
ORDER BY dateline DESC, postid DESC
LIMIT " . ($vbulletin->options['maxposts'] + 1)
$threadinfo[threadid] seems to end up without any value and hence the error me, PcGamer and other are experience.
Do any of you php-coders see the connection?