Google Authenticator Down

[RhegaF]

Hi There

Since Google Auth been down , is there any other ways to implement this 2 FA?

Also I try to custom the 2FA using this repo but facing the unauthorized issue on the 2FA login page html.
The issue /error says that im not authorized to call API TwoFactorAuthController.cs. Is there any advice to fix the unathorized issue ?

Thanks in Advice