I started hosting a Legend Screaming bell map, but spawned with a
Backend Error : 1110
window on my screen.
The game ran normally in the background, I could see the 3 other players move, fight, ping, and write in the chat ; though I think they could not read my messages.
After the game ended, I returned to the keep and was able to start a new game. The backend error game is therefore the penultimate one in the logs.