I’ve heard this once or twice from my Android users. The solution they used was just to download the game from the free links on my Patreon or copying their save file somewhere safe and reinstalling the whole game. I’m sorry guys
So small update, I looked up the error message on Google and what it tells me is that it has to do with trying to download an APK when an APK of the same name already exists on the device. This is the first time I've ran into this but I see no way around it aside from doing a fresh install.