Sorry to hear the game crashed for you. A few people have reported the same issue, but I can't seem to find a solution for it. It's a very rare case. I tried using a very weak and cheap phone, and it didn't crash while playing the game.
I don't know if this helps, but I will tell you that my phone lags when I play Pou, but no in the games, just in the house, when you can feed it, etc (that is the same thing that happen when I try to play this game, in the house or other parts of the map it's laggy but in the minigames I don't have any problems). It's weird because I can play Stardew Valley with no lag, I mean bro, WTF. Maybe the game have the same issue xd?