Need help with my script, error 0839, Can I get some help?

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

public class RoomManager : MonoBehaviourCallbacks
{
    // Start is called before the first frame update
    void Start()
    {
        Debug.Log( ,message, "Connecting...");

	    PhotonNetwork.ConnetUsingSettings();
    }


	public override void OnConnectedToMaster()
	{
	    base.OnConnectedToMaster();

		Debug.Log( ,message, "Connected to Server");

		PhotonNetwork.JoinLobby();
    }
}

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

public class RoomManager : MonoBehaviourPunCallbacks
{
    // Start is called before the first frame update
    void Start()
    {
        Debug.Log("Connecting...");
        PhotonNetwork.ConnectUsingSettings();
    }

    public override void OnConnectedToMaster()
    {
        base.OnConnectedToMaster();
        Debug.Log("Connected to Server");
        PhotonNetwork.JoinLobby();
    }
}

Here are the changes made:

Changed MonoBehaviourCallbacks to MonoBehaviourPunCallbacks. This is the correct class to inherit from when using Photon.

Corrected the Debug.Log() statements by removing the unnecessary ,message, and fixing the quotes.

Fixed a typo in the method ConnetUsingSettings() to ConnectUsingSettings().

Let me know if that works.