After updated iPhone to iOS 14.2, you may get crash on the Google Authenticator every time open. It makes many users cannot login to the APPs that need 2FA. The latest version is Version 3.0.1 and it was 2 years ago. I don’t think they will update soon.

Solution

I’ve find out this solution. Please make sure DO NOT remove or uninstall the APP. If you remove or uninstall, all your data will gone and you are not able to login to your accounts again.

1. Settings
2. General
3. iPhone Storage
4. Choose Authenticator
5. Offload App
6. Re-install App

Wish this can help you save the time.