Can't make gbridge works in self hosted


I follow the tutorial with this link without problem.
But when i try to add the bridge through Google Home app, I have the page (Nice to see you again, Google is eequiring access to your gBridge Account….)
At this point, I entered the login and password I created and works when I connect to the bridge locally and I have this answer, (Not Found, the requestedn URL /gapi/auth was not found on this server)
I use the port 8081 redirected to the container. Works locally.
Can you make a whole tutorial up yo the end of using gBridge with Google Home app because actualy, it is completly unusable.
Is someone tried to make a Self Hosted works, can you make a tuto please or a video on YouTube.