Google Play Store error 921 - you can do that

If error 921 occurs in the Google Play Store, apps or updates can no longer be loaded. We'll show you how to solve the problem.

Google Play Store: Fix error 921

• Restart: In some cases it may be sufficient to restart the smartphone once. Small errors in the buffer are deleted in this way.
• Play Store: Many errors with the Play Store can be solved by clearing the app data and the cache. To do this, follow the instructions in this practical tip. If this does not lead to success, also tap the "Force stop" and "Uninstall updates" button (see picture).
• Google Account: Open the "Settings" app and switch to the "Account" category above. Select your Google account and tap "Remove account". After a restart, you can "add an account" under the category "Account".
• Wait: Sometimes the error is also related to server problems with Google. Then you can only do one thing: wait. The error should then resolve itself after a few minutes to hours.