Game stopped working 187

[CommanderABab]

It froze and showed an ad while I was adding some roads.
Game stopped working.


Completely. Plays the sad opening music. Opens with an ad. Won't even open the choose a city screen.

Closed it. Same.

Uninstalled and reinstalled. Same.

Force stopped it. Same.

What to do?

[CommanderABab]

Had to power off device. Lost all changes I had made. But working again.