Не работает метод, саму игру запустить можно но в игре вылазит ошибка

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class ControllPlayer : MonoBehaviour
{
    public enum controllerDis { Walk = 0, Run = 1, Jump = 2, Shoot = 3}
 
    public void CheckDis()
    {
        print("Check");
    }
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
 
public class AIControllerZombie : MonoBehaviour
{
    private NavMeshAgent navmeshagent;
    private GameObject Player;
 
    public float disToPlayer;
 
    void Start()
    {
        navmeshagent = GetComponent<NavMeshAgent>();
    }
 
    private void Update()
    {
        Player = GameObject.FindGameObjectWithTag("Player");
        float dis = Vector3.Distance(Player.transform.position, transform.position);
 
        // 8 - standart dis
        if (dis <= disToPlayer)
        {
            navmeshagent.SetDestination(Player.transform.position);
        }
        
        if(dis <= 20)
        {
            Player.GetComponent<ControllPlayer>().CheckDis();
        }
    }
}

Player = GameObject.FindGameObjectWithTag("Player");