Game crashes when trying to load specific Realm.

The realm Terrarium by Kinnetik crashed late last night, kicking off the logged in players.  It was not reachable again that night and is still not the following morning.  The Realms screen shows Terrarium as online with players logged in, but those players aren't on and the game crashes when attempting to join it.  Attached screenshot of the Realms screen and crash logs.