question

So, first sorry for my english. I'm from Brazil.

particularly I'm still learning C #, then. I follow a tutorial where to make a leaderboard, and in this leaderboard I want to show the player avatar url of everyone who is in the Ranking. But when i play in a debug, it always returns null.

I once managed to show the avatar of the current player who logged in. But not from the leaderboard.

 void OnDisplayName(UpdateUserTitleDisplayNameResult result)
   {
 Debug.Log(result.DisplayName + "is your name");
   }
    private void OnLoginFailure(PlayFabError error)
    {
       var registerRequest = new RegisterPlayFabUserRequest {Email = email, Password = password, Username = username};
       PlayFabClientAPI.RegisterPlayFabUser(registerRequest, OnRegisterSuccess,OnRegisterFailure);
       errorRegister.gameObject.SetActive(true);
    }


private void OnRegisterFailure (PlayFabError error)
{


Debug.Log(error.GenerateErrorReport());
errorRegister.gameObject.SetActive(true);
}


public void getUserEmail(string emailIn)
{
    email = emailIn;
}
public void getUserPassword(string passwordIn)
{
    password = passwordIn;
}
public void getUsername(string usernameIn)
{
    username = usernameIn;
}


public void OnClickLogin ()
{
    var request = new LoginWithEmailAddressRequest {Email = email, Password = password};
    PlayFabClientAPI.LoginWithEmailAddress(request, OnLoginSuccess, OnLoginFailure);
}   
    




public int playerLevel;
public int playerRank;
public int playerMatch;




public void GetPlayerStats ()
{
    PlayFabClientAPI.UpdatePlayerStatistics( new UpdatePlayerStatisticsRequest {
    // request.Statistics is a list, so multiple StatisticUpdate objects can be defined if required.
    Statistics = new List<StatisticUpdate> {
    new StatisticUpdate { StatisticName = "Player Level", Value = 6 },
    new StatisticUpdate { StatisticName = "Player Rank", Value = 10 },
    new StatisticUpdate { StatisticName = "Player Matchs", Value = 1 },
    }
},
result => { Debug.Log("User statistics updated"); },
error => { Debug.LogError(error.GenerateErrorReport()); });
}




void GetStats()
{
    PlayFabClientAPI.GetPlayerStatistics(
        new GetPlayerStatisticsRequest(),
        OnGetStatistics,
        error => Debug.LogError(error.GenerateErrorReport())
    );
}


void OnGetStatistics(GetPlayerStatisticsResult result)
{
    Debug.Log("Received the following Statistics:");
    foreach (var eachStat in result.Statistics)
    {
     Debug.Log("Statistic (" + eachStat.StatisticName + "): " + eachStat.Value);


switch (eachStat.StatisticName)
{
    case "Player Level":
    playerLevel = eachStat.Value;
    break;
  
  case "Player Rank":
    playerRank = eachStat.Value;
    break;


case "Player Matchs":
    playerMatch = eachStat.Value;
    break;


}


    }
        
}
// Build the request object and access the API
public void StartCloudUpdatePlayerStats()
{
    PlayFabClientAPI.ExecuteCloudScript(new ExecuteCloudScriptRequest()
    {
        FunctionName = "UpdatePlayerStats", // Arbitrary function name (must exist in your uploaded cloud.js file)
        FunctionParameter = new { Level = playerLevel, Rank = playerRank, Match = playerMatch}, // The parameter provided to your function
        GeneratePlayStreamEvent = true, // Optional - Shows this event in PlayStream
    },  OnCloudUpdatePlayerStats, OnErrorShared);
}


// OnCloudHelloWorld defined in the next code block
    private  void OnCloudUpdatePlayerStats(ExecuteCloudScriptResult result) {
    // CloudScript returns arbitrary results, so you have to evaluate them one step and one parameter at a time
    Debug.Log(PlayFab.PluginManager.GetPlugin<ISerializerPlugin>(PluginContract.PlayFab_Serializer));
    JsonObject jsonResult = (JsonObject)result.FunctionResult;
    object messageValue;
    jsonResult.TryGetValue("messageValue", out messageValue); // note how "messageValue" directly corresponds to the JSON values set in CloudScript
    Debug.Log((string)messageValue);
}


private static void OnErrorShared(PlayFabError error)
{
    Debug.Log(error.GenerateErrorReport());
}


    
    #region Leaderboards


    public void GetLeaderboard()
    {


      LeaderboardCanvas.SetActive(true);
        var requestLeaderboard = new GetLeaderboardRequest { StartPosition = 0, StatisticName = "Player Rank", MaxResultsCount = 50 };
        PlayFabClientAPI.GetLeaderboard(requestLeaderboard, OnGetLeaderboard, OnGetLeaderboardError);
       
    }
    


    public GameObject leaderboardListPrefab;
   public Transform verticalLeaderboardList;




    public void OnGetLeaderboard(GetLeaderboardResult result)
{
        //Debug.Log(result.Leaderboards[0].StatValue);




    foreach (PlayerLeaderboardEntry player in result.Leaderboard)
{
    
    GameObject tempListing = Instantiate (leaderboardListPrefab,verticalLeaderboardList);
    PlayFabLeaderboardList Leaderboard =  tempListing.GetComponent<PlayFabLeaderboardList>();
    Leaderboard.PlayerName.text = player.DisplayName;
    Leaderboard.PlayerPDL.text = player.StatValue.ToString();
    Debug.Log(player.Profile.AvatarUrl);
            






        }
        
        


    }
    
    /// <summary>
   
    /// </summary>


    public GameObject LeaderboardBackground;
public GameObject LeaderboardCloseButton;




    public void OnCloseLeaderboard()
{
LeaderboardCanvas.SetActive(false);
for (int i = verticalLeaderboardList.childCount -1; i>=0; i--)
{
  Destroy(verticalLeaderboardList.GetChild(i).gameObject);
}
DontDestroyOnLoad(this.LeaderboardBackground);
DontDestroyOnLoad(this.LeaderboardCloseButton);
}




   public void OnGetLeaderboardError(PlayFabError error)
   {
       Debug.LogError(error.GenerateErrorReport());
   }
   
    #endregion