> ## Documentation Index
> Fetch the complete documentation index at: https://kb.mochahost.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Error "Access denied with code 406" OR Error "Not Acceptable An appropriate representation of the requested resource / could not be found on this server" (mod_security)

If you are seeing in your browser or in your site access log the following two error logs:

**"Access denied with code 406"** 

OR

**"Not Acceptable An appropriate representation of the requested resource / could not be found on this server"**

That means that your application/site has triggered one of our default application firewall rules (for our shared Linux, and shared Linux reseller servers - modsec / mod\\\_security).

Please, contact our [support](https://www.mochahost.com/support.php) so that we can assist you with this error.