Spotify Authentication, testers not authorized, displaying wrong

[Flotss]

When trying to connect via spotify, supabase returns an error.
I'm not approved in the list of testers, so I can't connect and that's normal. But I wasn't supposed to get the raw error
Here's my error:

Finding a way to tell the user that you're not on the testers list.

How to generate the error:

1. Joining the application with Spotify and giving an account that's not on the list
2. You should see the error