To improve security, we will soon start forcing password resets for any account that uses a weak password on the next login. If you have a weak password or a defunct email, please update it now to prevent future disruption.
This error is on the dev's part not on yours all you could do was wait for a new version which I imaniged is what you did. I'm moving this to solved but if you're still having problems with other versions or games please tell me and I'll move it back.