The registry just experienced some downtime, because a DNS update was misconfigured during a site-move. I am very sorry about that, but couldn't really do anything about it because we had a time-limit for the move.
I hope everything is back to normal now -- a couple of software updates were also made at the same time, so problems might occur. Let me know in the comments if you see anything. Thank you for understanding (which I hope you do...).