Why are threads not opening after a search?

[Insanity]

Was having issues in opening threads listed after doing a search.

Search for a keyword, a list was generated, click on the link for a thread and get the following error.

406 Not Acceptable

Not Acceptable

An appropriate representation of the requested resource /showthread.php could not be found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

 

[Fredrik]

This happens when the word you searched for contains a character that can't be used in a URL. Try searching for "Poincaré" for example. A workaround is to edit the URL manually. I just delete the & symbol and everything after it. I don't really like the "highlight" feature anyway.