Any ideas?

Obviously for maintenance, give it some time.

Nothing is perfect (this includes servers) To my understanding there was a few minor technical difficulties that stressed the server. All of which should be resolved now.

Because, Tig makes somethings on Community Platform, and it crashes. (Like when you add wrong things on Lua, System exits and Lua crashing)
And Tig must fix the right script to keep up the game with safe.