Unable to get User Name from current Session

   private void getUserName(){
        client = new Client(requireActivity())
                .setEndpoint(endpoint)
                .setProject(project);
        account = new Account(client);
        account.getSession("current",
                new CoroutineCallback<>((result, error)-> {
                    if (error != null) {
                        error.printStackTrace();
                    }else{
                        // pass `result` in to a json object
                        try {
                            JSONObject jsonObject = new JSONObject(String.valueOf(result));
                            //get parameter "name" from the json object
                            String name = jsonObject.getString("name");
                            // pass the name parameter into textview
                            binding.userNameDisplay.setText(name);
                          
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                }
                        ));
    }