1. It's a network problem. You can switch the network or use data when you enter the game. If there is no data, wait until you enter, and then close it. If it's not a cloud game, it won't take much. It is possible that there is something wrong with the mobile phone.

2. It's easy to get stuck if the phone has too much memory, or the phone is too old. You can clear the memory or change the phone.