Getting 400 on OAuth2 with Auth0

I'm trying to setup an Auth0 authentication with my rest api. Here is my current setup:

I've also added to the allowed callback urls.

I'm getting the error below:

Screen Shot 2022-02-01 at 15.10.47

Can anyone help me? What am I doing wrong?

Hello! Just confirming...It looks like you're using OAuth not Auth0, is that correct? What do you have selected here?

Yes, I've selected OAuth 2.0 on purpose. There was an error on the Auth0 side. It works with this setup. But I should be able to choose Auth0 here right? I couldn't find a documentation about how to export the token.

It's entirely dependent upon what your API is set up to handle. Do you know if it can handle Auth0?