If your device has not had enough memory, you might experience 'app is loading slowly' or 'not opening at all'. To fix the problems, please refer to the steps below.

We recommend you try the steps below to solve the problem.

- Forcibly close all apps and turn the device off and on again. The device must be turned off for at least 10 seconds and then turned on again.
- Make sure that the device and app updates are up to date.
- Make sure to free up enough memory on your device. In general, it is recommended to secure at least 2GB. If the remaining memory is less than that, free up more memory to keep the game running smoothly.