Post Views producing error with new Google-Sign-In

The post views extension worked very well with GA4 – but Google apparently has changed some policies.

I get this error now:
Google Post Views Error: Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.

I hope the developers of the post views extension can quickly fix this. THANKS!