ERROR: An Object Reference is Required to access non static member

using UnityEngine;
using System.Collections;

public class IfDestroyed : MonoBehaviour
{
public GameObject Test;
public LoadLevelTrigger ScriptLoadLevelTrigger;

// Use this for initialization
void Start () 
{
	ScriptLoadLevelTrigger = GetComponent<LoadLevelTrigger> ();
}

// Update is called once per frame
void Update () 
{
	IfDestroyed id = new IfDestroyed ();
	if (id.Test != null) 
	{
		LoadLevelTrigger.enabled = false;
	} 
	else 
	{
		LoadLevelTrigger.enabled = true;
	}

}

}

I am trying to call a script to enable and disable if an object is destroyed or not. But an error comes up. Please help!

You named the variable ScriptLoadLevelTrigger yet you didn’t use it.

IfDestroyed id = new IfDestroyed ();
     if (id.Test != null) 
     {
         ScriptLoadLevelTrigger.enabled = false;
     } 
     else 
     {
         ScriptLoadLevelTrigger.enabled = true;
     }