Resolved NullReferenceException while executing 'performed' callbacks

Hello. I'm having this error with the new input system. I can't figure out what my problem is.
Here is my error:

Code (CSharp):

1. NullReferenceException while executing 'performed' callbacks of 'Player/Shoot[/Mouse/leftButton]'
2. UnityEngine.InputSystem.LowLevel.<>c__DisplayClass7_0:<set_onUpdate>b__0(NativeInputUpdateType, NativeInputEventBuffer*)
3. UnityEngineInternal.Input.NativeInputSystem:NotifyUpdate(NativeInputUpdateType, IntPtr)
4.  

Here is my code:

Code (CSharp):

1. using System;
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using UnityEngine.InputSystem;
6.  
7. public class Collision : MonoBehaviour
8. {
9.  
10.     private MapRenderer mapRenderer;
11.  
12.     private Controls controls = null;
13.  
14.     private Controls Controls
15.     {
16.         get
17.         {
18.             if (controls != null) { return controls; }
19.             return controls = new Controls();
20.         }
21.     }
22.  
23.     // Start is called before the first frame update
24.     void Awake()
25.     {
26.         mapRenderer = GetComponent<MapRenderer>();
27.     }
28.  
29.     private Vector2 mousePos;
30.  
31.     private void SetMousePos(Vector2 mousePos)
32.     {
33.         this.mousePos = mousePos;
34.     }
35.  
36.     private void RightClick()
37.     {
38.         if (mousePos == null) return;
39.  
40.         Vector3 position = Camera.main.ScreenToWorldPoint(new Vector3(mousePos.x, mousePos.y));
41.         Vector3 savePosition = position;
42.         // Perform RightClick()
43.     }
44.  
45.     private void LeftClick()
46.     {
47.         if (mousePos == null) return;
48.  
49.         Vector3 position = Camera.main.ScreenToWorldPoint(new Vector3(mousePos.x, mousePos.y));
50.         Vector3 savePosition = position;
51.         // Perform LeftClick(
52.      }
53.  
54.     private void OnEnable()
55.     {
56.         Controls.Enable();
57.         Controls.Player.Look.performed += ctx => SetMousePos(ctx.ReadValue<Vector2>());
58.         Controls.Player.Shoot.performed += _ => RightClick();
59.         Controls.Player.Shoot.performed += _ => LeftClick();
60.     }
61.  
62.     private void OnDisable()
63.     {
64.         Controls.Disable();
65.     }
66.  
67. }
68.  

There is no error in my input system.
And there is no error if I use the old input manager with the same code.
But when I merge the input system with the same code it causes problems.
I verified and I use Vector2 everywhere that I then convert to Vector3
The Vector3 is valid. The code does not produce any problem.
There is only the error message remaining.

 

Solved, I don't know why
I had to check if the component that I was using was not null at RightClick() and LeftClick()

Code (CSharp):

1. if (mapRenderer == null) return;