notice the game version are back to patch 1.5.7 dunno if that any help
I've noticed my game client now states 1.5.7 as well. After I restarted my PC (but didn't run the launcher or did any manual updates) I was presented with the terms of service again, for some reason.
Everyone on the EU server probably has this issue. I logged out to find info on where to find a quest giver. When I fired eso.exe back up again, error 201 was laughing in my face.