There are a number of issues that can cause your game client to crash, and they are easy to resolve. These are the most common ways to resolve possible game-crashing issues:

1. Check that you have the latest stable version of your device's operating system installed. You can check this in your device's Settings menus.

2. Your game client may crash if your device is low on memory. To free up memory on your device, reboot your device, or close apps that are running in the background. If you do not know how to close apps that are running in the background, you'll have to find instructions specific to your device and operating system.

3. If your device is in Power Saving mode, try turning it off and restarting the game to see if it resolves the issue.