Failed to connect to map server is a message you also can get while changing maps and entering portals in the game. It's usually nothing severe either, and as worst, your character might be stuck in that map until there's a reset of the map server process. Another issue similar to this can be if you get the loading screen after choosing a character, but it never loads. Most of the time it should be followed by this "failed to connect" message. If you try to choose another character that isn't placed in the same map, it sometimes let you play since every map in the game, has it's own server process. Sometimes the server needs to be restarted in order to fetch some stuck characters. If you had characters that's been stuck for weeks, you should contact the staff.
QuoteFailed to connect to map server is a message you also can get while changing maps and entering portals in the game. It's usually nothing severe either, and as worst, your character might be stuck in that map until there's a reset of the map server process. Another issue similar to this can be if you get the loading screen after choosing a character, but it never loads. Most of the time it should be followed by this "failed to connect" message. If you try to choose another character that isn't placed in the same map, it sometimes let you play since every map in the game, has it's own server process. Sometimes the server needs to be restarted in order to fetch some stuck characters. If you had characters that's been stuck for weeks, you should contact the staff.
This can happen whilst travelling to different maps. I'm not sure of a solution but it's usually something you can wait out. You could try re-installing the map and checking your firewall in case your computer is blocking Feralheart.
I'm sorry but I'm not sure what else you can do.