Welcome to the Auth0 Community.
I am sorry about the late reply to your inquiry.
If you still need assistance with this issue, you can review the steps for the knowledge article linked since it has been updated since the last time you have attempted the setup. By following the steps, you should be able to implement everything without running into any issues.
If you have any other questions, feel free to leave a reply or post again on the community!
Kind Regards,
Nik