ErrorException: Undefined index: - library/XenForo/Session.php:919


Hello community,

rarely I have turned to you, but now I have problems with my XenForo forum. I can in the topic titles and the topics the word "onpage" do not use.

It is equal to an error is that there is a "unsave operation". The fault, according to the internal forum error log looks like this.

ErrorException: Undefined index: - library/XenForo/Session.php:919

array(3) {
  ["url"] => string(60) ""
  ["_GET"] => array(0) {
  ["_POST"] => array(0) {

Who can help and what causes this error?

I have the ultimate forum version. On the server side PHP 5.6 and the latest version of MySQL or MariaDB.

Over a few suggestions I would be very happy. Thank you!
The URL that generates that error is interesting.


That's not the default XF URL. Default XF would be "posts" rather than "OnlyPosts".

So i suspect this is coming from an add on. With that in mind I recommend contacting the author of that add on as they will be better placed to help.
Thanks for your quick reply. But I have a problem with the word "onpage" the entire board.

This word I can not write down. It creates the same error, just with the URL of the particular Forum.

Why not go with the word "onpage" throughout the Forum?
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