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

Discussion in 'Troubleshooting and Problems' started by AlexL777, Sep 23, 2016.

  1. AlexL777

    AlexL777 Member

    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) "http://rostockerblogger.de/xenforo/find-new/243886/OnlyPosts"
      ["_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!
  2. Chris D

    Chris D XenForo Developer Staff Member

    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.
  3. AlexL777

    AlexL777 Member

    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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