Cannot save search configuration

[Ferry_01]

Hello,

I'm trying to save changes I've made to the search configuration (Back Office / configure / shop parameters / search).
But as soon as I click on save I get a white page saying: Forbidden  You don't have permission to access this resource.

And in the webserver log I see the following message line: ModSecurity: Access denied with code 403 (phase 2)
and msg "COMODO WAF: Detects conditional SQL injection attempts

I only get this Forbidden behavior at the search settings. I can just save all other settings.
I already set Disable Apache's mod_security module to yes, without luck.

Using Prestashop 1.7.6.5

Any help or advice on solving this problem is greatly appreciated.

Thanks

[musicmaster]

Comodo is a virus checker. You might check with your hosting provider.