[SOLVED] Flutter Login with Apple

    try {
      final response = await account.createOAuth2Session(
        provider: 'apple',
        success: "https://XX.com/auth/oauth2/success",
        failure: "https://XX.com/auth/oauth2/failure",
      );
      print(response);
      return response;
    } on AppwriteException {
      rethrow;
    }
  }````

To open the login page I use:
```ElevatedButton(
                    child: const Text('Login with Apple'),
                    onPressed: () async {
                      await AuthHelper().loginWithApple().then((value) {
                        prefs.setSessionId(value.$id);

                        Navigator.of(context).pushReplacement(
                          MaterialPageRoute(
                            builder: (context) => const HomePage(),
                          ),
                        );
                      }).onError((error, stackTrace) {
                        print(error);
                      });
                    },
                  ),````

In the simulator I get the error seen in the screenshot. When I run the app on my iPhone with the cable connected the page opens fine, but when I click on login I get the error that the login is not possible ("registration not completed"). I host appwrite on digitalocean with a custom (sub-)domain.