Restart scene but can't press the menu buttons

Unity Engine
1

Hi, I’m working on my 3D game, but when I press “escape” and get back to my menu scene, the buttons on the menu scene don’t seem to be working. I just don’t get the problem. Is it because of my code?

if(Input.GetButtonDown("Cancel"))
        {
            SceneManager.LoadScene("Menu");
        }

The code works but the buttons on the menu don’t work.

2

Are you leaving Time.timeScale still set to zero?