And I quote...

The pool was the victim of a DDoS attack this morning (April 11th). It is likely this attack was being done in conjunction with market manipulation in order to slow the ability of people to react/withdraw coins to cash out during the crash.

The servers are now online, with the exception of eu-stratum. The eu-stratum pool is temporarily being redirected to the North American servers in order to restore mining functionality for users.

I was having problems with one of my workers early on... And this was the problem... Switched to Stratum server (USA) should fix it quickly.