There seems to have been something wrong with FeralHeart itself.
I was logged out with "Can't connect to the server".
So there was nothing wrong with your connection.
However. As Rit said. You need to wait a little before panicing.
There might be an issue with your connection, so googling issues with the internet and how to fix them.
Also, you could check the map list for FeralHeart.
All you need to do is hover your mouse over the right side of the website and a list will move out. c:
If the number is 0 or low, the map might have been disconnected. Sometimes multiple maps.