Unity Photon WASD working but Virtual Joystick won't work after another player has joined the network. How can I fix it?

Question

I am creating a multiplayer service using photon. It is possible for the user to move using WASD or Joystick in this service. The joystick function works well when I am alone, but when someone else enters, the joystick function for everyone does not work. How can I fix this?

This is the inspector setting for select a character.

This is the code for selecting a character.

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

public class SimpleLauncher : MonoBehaviourPunCallbacks
{
    public PhotonView playerPrefab;

    public InputField playerNickname;
    public GameObject nicknameInput;

    public string chooseAvatar = "User1";

    public override void OnConnectedToMaster()
    {
        Debug.Log("Connected to Master");
        PhotonNetwork.JoinRandomOrCreateRoom();
    }

    public override void OnJoinedRoom()
    {
        Debug.Log("Joined a room.");
        PhotonNetwork.Instantiate(playerPrefab.name, Vector3.zero, Quaternion.identity);
    }

    public void StartTheGame()
    {
        PhotonNetwork.NickName = playerNickname.text + "-" + chooseAvatar;
        PhotonNetwork.ConnectUsingSettings();
        nicknameInput.SetActive(false);
    }

    public void SetAvater(string avatarName)
    {
        chooseAvatar = avatarName;
    }
}

This is the inspector setting for Player

This is the inspector setting for Player

This is Player Scripts

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

public class SimplePlayer : MonoBehaviourPunCallbacks
{
    public float speed = 1f;
    public float rspeed = 5f;

    float currentVeclocity;
    float currentSpeed;
    float speedVelocity;

    public float MoveSpeed = 1f;
    public float smoothRotationTime = 0.25f;
    public bool enableMobileInputs = false;
    public FixedJoystick joystick;

    void Start()
    {
        GameObject chooseAvatar = (GameObject)Instantiate(Resources.Load(photonView.Owner.NickName.Split('-')[1]));
        chooseAvatar.transform.SetParent(transform);
    }

    void Update()
    {
        if (!photonView.IsMine)
        {
            return;
        }

        Vector3 input = Vector3.zero;

        if (enableMobileInputs)
        {
            input = new Vector3(joystick.input.x, joystick.input.y);
        }
        else
        {
            input = new Vector3(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));
        }

        Vector3 inputDir = input.normalized;

        if (inputDir != Vector3.zero)
        {
            float rotation = Mathf.Atan2(inputDir.x, inputDir.y) * Mathf.Rad2Deg;
            transform.eulerAngles = Vector3.up * Mathf.SmoothDampAngle(transform.eulerAngles.y, rotation, ref currentVeclocity, smoothRotationTime);
        }

        float tragetSpeed = MoveSpeed * inputDir.magnitude;
        currentSpeed = Mathf.SmoothDamp(currentSpeed, tragetSpeed, ref speedVelocity, 0.1f);

        transform.Translate(transform.forward * currentSpeed * Time.deltaTime, Space.World);
    }
}

I'm in desperate need of help. Please help me.

I thought it might be a problem with the joystick code at first, so I tried writing a different joystick code. Then, I checked if the IsMine state was not true when someone else entered, but that wasn't the issue either.