■Checking your device memory (RAM) usage
Depending on your device environment and the memory usage of this application, your device may perform memory optimization automatically.
In this case, KAIJU NO. 8 THE GAME app may close while you are performing account linking operations in the browser.
Please try the following steps related to your device’s memory:
▼Troubleshooting with memory usage
・Refer to [Settings] > [Additional Settings] > [Memory Expansion] and turn it on (Android OS only)
・Ensure that only KAIJU NO. 8 THE GAME is running.
Please note that the [Memory Expansion] function may not be available depending on your device.
▼Android Users
============
■Checking Your Login Status
Please open the Google Play Games app and select your profile to confirm whether you are logged into your account.
Please log in to your Google account on your device, then launch KAIJU NO. 8 THE GAME from Google Play Games app to link your account.
■Clearing Storage and Cache
Please go to your device's Settings > Apps > Google Play Games and clear the storage cache.
Open the Google Play Games app, log in again and try launching KAIJU NO. 8 THE GAME to link your account.
■Re-login and Restart
Please log in to your Google account again and restart your device.
Launching KAIJU NO. 8 THE GAME from the Google Play Games app and try to link your account.
============
▼PC Users
Please ensure that you are logged into the Google account you wish to link or transfer.
If you are logged into a different account, please log in with the account intended for linking or transfer.
▼If the issue still persists
Please consider creating an Apple Account and linking it to your game account, as Apple Account linking is available on all platforms.