Button disappearing when I start playmode

[Way-Finder]

I have a program where I am trying to have an array of sprites that I want to change with a button click.
I have the sprites rendering, but when I enter Play mode the button object I have assigned to the Hood/Hair object is disappearing.

Can anyone help me out please?

images and code below:

  using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using UnityEngine.UI;
    
    public class SelectionManager : MonoBehaviour {
    
    	public SpriteRenderer clothing;
    	public Button Select;
    	public Sprite[] clothes;
    	int num = 0;
    
    	void Start () {
    		clothing = GetComponent<SpriteRenderer> ();
    		Select = GetComponent<Button> ();
    		Select.onClick.AddListener(TaskOnClick);
    	}
    
    	void Update () {
    		clothing.sprite = clothes [num];
    		}
    
    	public void TaskOnClick ()
    	{
    			num = +num;
    			if (num >= clothes.Length) 
    				num = 0;
    	}
    }

[system]

On line 15, you’re assigning Select with a GetComponent(), but there’s no Button component on the Hood/Hair GameObject. As a result, Select is set to null when you press play. If you get rid of that line it should work fine.