This app isn’t verified

Hi. I installed this plugin, set up the Client ID and Secret. Then it says I need to Grant Permission. When I click that, it takes me to accounts.google.com/……. and the page won’t let me go any further into my google account.

The page shows up saying:

This app isn’t verified.
This app hasn’t been verified by Google yet. Only proceed if you know and trust the developer.
If you’re the developer, submit a verification request to remove this screen. Learn more

Can you please help me? I’ve followed all the steps in the video linked in the plugin page.

Thank you