Hey Guys,
since a couple of days, I get the following Error message after I've saved a content page.
Notice: Undefined index: n0151 in include() (Zeile 1 von /mnt/webw/c0/01/5220001/htdocs/drupal-cms/modules/system/html.tpl.php).
The Notice appears just only in admin view, not in the common user view.
There were no changes on the Durpal System within the last couple of month and I'm wondering why this happens and why now.
I've already delete the drupal cache, but this didn't resolves the issue. Any ideas?
Installed Drupal Version 7.36
I'd really appreciate if someone could give me a hint how a could handle this issue.
Thank you!
Comments
Chunking
You need to start chunking the problem down, eliminating things that aren't related and therefore narrowing your list of related items.
For example:
After that, you could try updating all modules and seeing if that fixes it. Maybe run a virus scan over your server to make sure there hasn't been an injection or compromise. Try copying your site to a sandbox and see if there's any change?
The above applies to all problems and while it may seem easy to ask for the answer you'll learn more this way, I promise :)
Let me know how you go with the above and if you're still stuck list the results of the above I'll see if I can help
EDIT: By the way, line 1 of that html template file is the opening PHP tag so there could be an issue with another template file if it's not opening/closing tags properly or there's a syntax issue. Have you modified any tpl files or written any custom HTML/PHP code? Be worth checking that