If your game keeps crashing, there need the following steps to check:

First, make sure that your AOS or iOS is up to date.
For Android: Settings - About Device
For Apple: Settings - General - Software Update

Please try to follow the troubleshooting tips:
1. Make sure you have a solid connection with your device.
2. Clear the device memory by uninstalling unused apps or/and deleting other videos etc
3. Clear the cache memory by going to those OS mentioned above.
4. Restart your device.

Please note that your device may not meet the conditions our game needs before the storage. Therefore, we highly recommend checking your SDK and OS if it meets our required conditions.