question

Hi everyone, I'm working on my first unity project, I'm trying to create a login panel but when i run the project I have this error:

"/Client/RegisterPlayFabUser: Invalid input parameters : One of the following properties must be defined: Password, EncryptedRequest"

what can cause this error? please help me!

using PlayFab;
using PlayFab.ClientModels;
using System;
using UnityEngine;


public class PlayFabController : MonoBehaviour
{
    private string userEmail;
    private string userPassword;
    private string username;
    public GameObject loginPanel;


    public void Start()
    {
        //Note: Setting title Id here can be skipped if you have set the value in Editor Extensions already.
        if (string.IsNullOrEmpty(PlayFabSettings.TitleId))
        {
            PlayFabSettings.TitleId = "1****"; // Please change this value to your own titleId from PlayFab Game Manager
        }
        var request = new LoginWithEmailAddressRequest { Email = userEmail, Password = userPassword };
        PlayFabClientAPI.LoginWithEmailAddress(request, OnLoginSuccess, OnLoginFailure);
    }


    private void OnLoginSuccess(LoginResult result)
    {
        Debug.Log("Congratulations, you made your first successful API call!(loggato)");
        loginPanel.SetActive(false);
    }


    private void OnRegisterSuccess(RegisterPlayFabUserResult result)
    {
        Debug.Log("Congratulations, you made your first successful API call! (registrato)");
    }


    private void OnLoginFailure(PlayFabError error)
    {
        var registerRequest = new RegisterPlayFabUserRequest { Email = userEmail, Password = userPassword, Username = username };
        PlayFabClientAPI.RegisterPlayFabUser(registerRequest, OnRegisterSuccess, OnRegisterFailure);
    }
    private void OnRegisterFailure(PlayFabError error)
    {
        Debug.LogError(error.GenerateErrorReport());
    }




    public void getUserEmail(string s)
    {
        userEmail = s;
    }
    public void getUserPassword(string s)
    {
        userPassword = s;
    }
    public void getUsername(string s)
    {
        username = s;
    }
    public void OnClickLogin()
    {
        var request = new LoginWithEmailAddressRequest { Email = userEmail, Password = userPassword };
        PlayFabClientAPI.LoginWithEmailAddress(request, OnLoginSuccess, OnLoginFailure);
    }
}