aaP_insanalhikmah my web can't access after install and setting Nginx Free Firewall https://prnt.sc/xCbfD95iD1cC "ERR_HTTP2_PROTOCOL_ERROR"
sirfpsycho aaP_insanalhikmah I have bought nginx waf pro. And with the default settings of nginx waf, some of the users gets same error as you described.