The redirect URI in the request, https://lists.pagure.io/accounts/google/login/callback/, does not match the ones authorized for the OAuth client. To update the authorized redirect URIs, visit: https://console.developers.google.com/apis/credentials/oauthclient/406766361286-4uocrm53irbpbdoaa3r66ontjerc9hpb.apps.googleusercontent.com?project=406766361286