Problem with the word "double" in search

Hi , Whenever i or someone else on the forum search for something and the search term include the word double it shows this error any idea why? .
Not Acceptable
An appropriate representation of the requested resource /index.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.

Apache/2.2.29 (Unix) mod_ssl/2.2.29 OpenSSL/1.0.1e-fips mod_bwlimited/1.4 Server at ***** Port 80"


XenForo moderator
Staff member
That sounds like an error related to mod_security or similar.

Contact your host and explain the problem and they should be able to resolve it.