Google Oauth Error & API connector plugin


I’ve tried to set up the API connector plugin with this tutorial but I got an error telling me that API Connector is not set properly. I’ve read the google documentation but this lead me to nothing and everything seems in order in

I was able to authorize the app,

and after:

I’ve tried the Gmail API but Google sheet or Drive would be fine (as the setup might be similar). I am open to any advice, documentation, video, thought…

Thanks a lot !

I found another tutorial and it works fine, here’s the link : Add events from to google calendar - complete guide - YouTube