Why does typing IP Address into browser doesn't work?

HTTP and HTTPS are protocols which need the correct hostname in most cases. Typing IP address into browser doesn't work as often multiple sites are hosted on the same IP address and they can be distinguished only by the name given either in the HTTP-Host header and in case of HTTPS the SNI extension in the TLS handshake. Accessing a site by IP address omits the information about the requested hostname and thus can result in strange error messages or the wrong certificates.

In the specific case of pinnacle.com and the IP address 192.230.70.134: this IP address belongs to Incapsula which is a DDoS mitigation company. The error message you see is from their reverse proxy which forwards the traffic to the protected sites. It cannot handle the hostname 192.230.70.134 given in the HTTP requests since it expects instead the real hostname pinnacle.com. That's what the error message "failed to resolve site from host name" means - it is about finding the target host to the given name and not about DNS resolution.