Here is the note from Scarabaeus, who is working on the issue:

Our service provider is migrating IP addresses and that has impacted us (probably unexpectedly because CF mail was down during the crucial time). Until we complete the migration, players will have to connect to the game using the new IP address (w/the old port number):

162.249.126.23 4449

These forums are on a separate server, so you should have been able to arrive here without issues.

We'll try to get the DNS sorted out tonight so you can connect using the domain name again instead of the IP address.

Meaning, for example, you should be able to use carrionfields.net or carrionfields.com to visit the website. You can return to using carrionfields.net 4449 to connect to the game.

Hopefully we won't have an ill-timed experience in the future if we have to migrate again at some point.