Ok
I re done all steps on Google website,
Now there is no more error.
But, in Home App, I see my Magic Mirror, i clik on it, i enter login and password.
And i get an error like the picture
https://drive.google.com/file/d/1ukY_njs6KZAgSZH3B1mPf0XhydnvYVuE/view?usp=drivesdk
So i waited 24h to be sure and still error.
Any idea?