Why does it throw this error MissingReferenceException: The object of type 'Text' has been destroyed?

Question

Unity

Throws this error
MissingReferenceException: The object of type 'Text' has been destroyed but you are still trying to access it.
Your script should either check if it is null or you should not destroy the object.

public class UnityAds : MonoBehaviour, IUnityAdsListener
{
    
    string placement = "rewardedVideo";
    public float money;
    public Text moneyTxt;

    void Start()
    {
        money = PlayerPrefs.GetFloat("money");
        Advertisement.AddListener(this);
        Advertisement.Initialize("315925", true);
    }

    public void ShowUnityAD(string p)
    {
        Advertisement.Show(p);
    }

    public void OnUnityAdsDidFinish(string placementId, ShowResult showResult)
    {
        if (showResult == ShowResult.Finished)
        {
           moneyTxt.text = "Money:" + money++; 
        }
        else if (showResult == ShowResult.Failed)
        {
            //On no!
        }

Answer 1

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