Creating a new Host using YaST not accepting anu server name given

Hey guys, I’m trying to add a Host or Virtual Host to my Apache configuration using YaST, but when I click on Next to add it, it says the server name is not good, I tried using the format “host.domain.com” but it doesn’t accept it I even tried “host.domain.com:80” with the same results.

When I tried to add it manually it shows in Hosts as host.domain.com:80/host.domain.com which is obviously wrong.

Any ideas?

Thanks.