Please try the steps below if there are no improvements after restarting your device:
If your device is running on iOS11
● Open the App Store and tap on “Updates” ＞ Drag the screen down
※ If the “This item is no longer available.” message is displayed, please try again at a later time.
- Delete GooglePlay app cache
※Compressed files may be used, so please ensure you have enough available storage space.