I need help with a Flashlight script

I have been trying to get my flashlight script to work yet, it keeps saying there is no light attach to the game object.

Here is the script:

 using UnityEngine;
 using System.Collections;
 
 public class Flashlight : MonoBehaviour
 {
 
     public float a;
     public float b;
     public float c;
     public float d;
 
     public int batLevel;
 
     public Light Flashlight;
     public bool isOn;
     public float timer;
 
     void Start()
     {
         Flashlight = GetComponent<Light>();
         batLevel = 101;
         minusBat();
         isOn = true;
     }
 
     void minusBat()
     {
         if (isOn)
         {
             batLevel -= 1;
         }
     }
 
     void Update()
     {
 
         if (timer >= 0)
         {
             if (isOn)
             {
                 timer -= Time.deltaTime;
             }
         }
 
         if (timer <= 0)
         {
             timer = 5;
             minusBat();
         }
 
         if (Input.GetKeyUp(KeyCode.F))
         {
             Flashlight.enabled = !Flashlight.enabled;
 
             if (!isOn)
             {
                 isOn = true;
             }
             else
             {
                 isOn = false;
             }
 
         }
 
         if (batLevel == 0)
         {
             batLevel = 0;
             Flashlight.enabled = false;
             isOn = false;
         }
 
     }
 
     void OnGUI()
     {
         GUI.Box(new Rect(0, Screen.height / 1.21f, Screen.width / 6.16f, Screen.height / 19.58f), batLevel.ToString());
     }
 }

can someone tell me what i can do to fix this?