1. Please check your network connection, such as WiFi or LTE.
2. The app may not run smoothly if the remaining capacity is insufficient, or RAM/resources are low.
We recommend freeing up space, closing other apps, and rebooting your device. (Phone Settings - Device Management)
3. If the app is outdated, please update to the latest version from Google Play/Apple Appstore/Amazon Appstore. (Or delete and reinstall)
* Paid contents are available after payment and activation,
You must play the free content while online once after the install to use it smoothly. (= download the app data)