So currently I’m making inventory functions for my Michael game. I was making a script called RespawnItem.

public class RespawnItem : MonoBehaviour
{

    //----SERIALIZED PRIVATES----//
[SerializeField] private Transform playerLocation;
[SerializeField] private Image img;

private void Awake()
    {
img = GetComponent<UnityEngine.UI.Image>();
    }

public void Respawn()
    {

if (img.overrideSprite = gameObject.GetComponent<BetterItemScript>().image)
        {
            //set object location to player
transform.position = playerLocation.position;

            //enable the object
gameObject.SetActive(true);
        }

    }
}

I found a null reference exception in
img.overrideSprite = gameObject.GetComponent<BetterItemScript>().image
where the variable img is null.
I used the Debug session to see what was up and found the issue in img = GetComponent<UnityEngine.UI.Image>();

I looked up and used an if statement so I can properly assign the image to the variable, but it was still found to be null. Here, I thought that the GetComponent was not properly assigned to the Image variable, so I checked it with a debug session and now the img variable was no longer null. But then, when I turned off the session, it was still null.

What can I do about this issue?