成功进行应用程序购买会导致某些用户崩溃

I have an app with just one IAP which allows the user to unlock the full game. For a minority of users, they buy the IAP successfully but when they tap to continue, the game crashes. When re-launching the app and attempting to load their saved game, the app again crashes. Deleting and reinstalling the app also makes no difference.I have an app with just one IAP which allows th