Как исправить ошибку из пустоты Photon Pun?

Question

[Ilufi]

using Photon.Realtime;
using Photon.Pun;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class RoomListing : MonoBehaviour
{
    [SerializeField]
    private Text _text;
    
    public void SetRoomInfo(RoomInfo roomInfo1)
    {
        _text.text = roomInfo1.MaxPlayers + ", " + roomInfo1.Name;
    }
}

Ошибка :