looks like your site is causing mod_security to flag something. Mod_security is a security scanner that prevents code injection. We can turn this off or you can try to find what is causing it with your url's. Usually foreign languages being pass through the browser url is a cause. Please see the following link on this.
Disable mod_security via cPanel Modsec Manager
We recommend finding the cause of the error; however, if you have many pages causing this you can have tech support disable mod_security for you.
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