Server disconnect locks access to Trials of Chaos

Hey,

I got disconnected from the server while doing the trials of chaos. When trying to enter it again from the temple of chaos, I get the message: "Cannot connect to instance. That subarea no longer exists." and when I try to start a new trial with another ultimatum, I get an error message saying: "The operation could not be completed".

I restarted the game & steam twice but there is no change.

Thanks for looking into it!