I'm kicked out again. I feel like this issue isn't getting enough attention. The work flow isn't even "in progress" or assigned to anyone. I might do @unknown's ultimate solution and get another server provider. At least then I could use mods too.
I've had this issue on my realm for a few weeks now and it's happened for all users. It happens for up to sometimes an hour then randomly goes away, and sometimes it's just for one user while others are on the realm playing. It just kicked me off now with the error. Like with others, restarting the game, or computer, or ip doesn't fix it.
I'm getting the same error this morning.