What worked for me was double checking that values "Apple team ID", "Key ID" and "Private Key", the inputs for authentication with Apple in the Firebase developer console, were correct.
Miiiso
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Žilina, Slovensko