The only thing I could think of is that some file or another might be corrupted. Delete your save files (you should be able to search ".save" in whatever directory the game is in), redownload the game and try again maybe?
settings.save?
there should be three, settings, progress (possibly progression I can't quite remember) and score
I don't have progress(ion).save or score.save
Is it possible to just create those documents?
Not manually, I would just delete the existing save and try redownloading the game.
I've tried that several times already, but it didn't work
