Do you login through facebook login? I was able to get my game working by uninstalling and reinstalling and then I created login outside of Facebook. The game loaded. I then tried logging in with Facebook login and it worked and my data was retained.
I was able to get the game working again after I disconnected the game from Facebook. I had already uninstalled/reinstalled with no change. I then logged with separate login without logging into Facebook and the game loaded. I then logged out and logged in using Facebook and the game loaded with my data retained.