My site displays an unexplained 406 "Not Acceptable" error

If you get a 406 error, the most common reason is that our web application firewall (WAF) detected your request as potentially malicious and blocked it to protect your site.

But don't panic! If it's a false positive, you can whitelist the WAF rule that's blocking your requests by going to your cPanel, cpGuard section, then the WAF tab, and clicking "Whitelist".

Updated on: 29/07/2026