Not sure what you mean by 'black and white image': are you talking about the Ren'py loading screen?
If so, it means the game never booted up at all. Maybe the download was corrupted. You can try deleting it and reinstalling it to see if it works this time.
The code for choosing your language isn't working on your phone for whatever reason. I'm not sure what the issue as it works just fine on my Android device. I can only suggest that you delete the game and redownload it, and if it still doesn't work you'll either have to play it on a PC/laptop (if you have one) or give the game a miss.