Збрасываеться переменная при запуске игры. Unity

Там где Monster и Player после запуска игры в редакторе эти переменные збрасываються и там пишет None.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
using UnityEngine.SceneManagement;

public class pigeon_ai : MonoBehaviour
{
public NavMeshAgent Monster;
public GameObject Player;
// Start is called before the first frame update
void Start()
{
Monster = gameObject.GetComponent<NavMeshAgent>();
Player = GameObject.FindGameObjectWithTag("GameController");
}

// Update is called once per frame
void Update()
{
Monster.SetDestination(Player.transform.position);
float Dist_Player = Vector3.Distance(Player.transform.position, gameObject.transform.position);
if (Dist_Player < 1f)
{
ReloadLevel();
}
}

void ReloadLevel()
{
int currentSceneIndex = SceneManager.GetActiveScene().buildIndex;
SceneManager.LoadScene(currentSceneIndex);
}
}

Код

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.AI;

using UnityEngine.SceneManagement;



public class pigeon_ai : MonoBehaviour

{

    public NavMeshAgent Monster;

    public GameObject Player;

    // Start is called before the first frame update

    void Start()

    {

        Monster = gameObject.GetComponent<NavMeshAgent>();

        Player = GameObject.FindGameObjectWithTag("GameController");

    }



    // Update is called once per frame

    void Update()

    {

        Monster.SetDestination(Player.transform.position);

        float Dist_Player = Vector3.Distance(Player.transform.position, gameObject.transform.position);

        if (Dist_Player < 1f)

        {

            ReloadLevel();

        }

    }



    void ReloadLevel()

    {

        int currentSceneIndex = SceneManager.GetActiveScene().buildIndex;

        SceneManager.LoadScene(currentSceneIndex);

    }

}

Вот что в иерархии.


Ошибка которая появляется при запуске.