Pausemenu not working

Hi!
My Pausemenu script isnt working and I dont know why. The pause is really happening, so the timescale works but the menu doesnt get up, it just gets the Error: "Cannot implicitly convert type ‘UnityEngine.GameObject’ to ‘UnityEngine.GameObject’
Thats my Script:

public bool Menu;
	private GameObject pauseObjects = GameObject.FindGameObjectsWithTag("Menu");

	void Start ()
	{
		Menu = false;
	}

	void Update ()
	{
		if (Input.GetKeyUp (KeyCode.Escape)) {
			Menu = !Menu;
		}
		if (Menu) {
			Time.timeScale = 0f;
			foreach (GameObject g in pauseObjects) {
				g.SetActive (true);
			}
		} else {
			Time.timeScale = 1.0f;
			foreach (GameObject g in pauseObjects) {
				g.SetActive (false);
			}
		}
	}

You need to declare pauseObjects as an array. Like this:

private GameObject[] pauseObjects;

and then set it in start

void Start()
{
 pauseObjects = GameObject.FindGameObjectsWithTag("Menu");
}

EDIT: Improvement based on comments below

             public bool Menu;           
        
             public GameObject menuScreen;
            //Make your menu objects children of an empty gameObject on your canvas
            //and drag that parent gameObject to this variable in the inspector
             
             void Start ()
             {
             //bools are set to false by default so no need to declare it in start
             }
             
             void Update ()
             {
               //If pressing escape is the only way to pause...
               //Then the menu checks can be moved to within the escape code listener
               //to cut down on the number of conditions running on update

                if (Input.GetKeyUp(KeyCode.Escape))
                {
                    Menu = !Menu;
        
                    if (Menu)
                    {
                        Time.timeScale = 0f;
                        menuScreen.SetActive(true);        
                    }
                    else
                    {
                        Time.timeScale = 1.0f;
                        menuScreen.SetActive(false);
                    }
                }
            }