Need help to upload an avatar

Hey. I don’t know if I’m in the right place here. If not I am sorry. I have now created my first avatar. Now when I want to upload it via unity I get a short loading screen but nothing else happens. I hope someone of you can help me.

It sounds like these are you Possible problems
-VRC Avatar Descriptor is Missing
-Unity player is giving a red “!” in the console
Can you record a short video of whats going on and upload it to youtube?