There's a slight issue with the DNS server that the site is using. I've been trying to correct it for a while, but namecheap is having issues errors:
"CONNECTIVITY ISSUES WITH REGISTRY
We are currently experiencing connectivity issues with the registry and transactions are returning a failure. If you attempt a transaction to register/renew and receive a a failure notice on it **Please do not attempt it once more, we will manually register/renew the domains for you. Our developers are aware of this issue and are working diligently on resolving it as soon as possible. We sincerely apologize for the inconvenience this may have caused you. Sincerely, Namecheap Support Team"