I want to do a pause panel

For Ui button don't use Input

make this instead :

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 
  public class PauseManu : MonoBehaviour
  {
    public static bool GameisPaused = false;
    public Button escape;
    public GameObject pauseMenuUI;
 
    public void Pause()
    {
       GameisPaused = true;
       pauseMenuUI.SetActive(true);

    }
  }

And add your script on the "OnClickEvent" And Choose your public void in it...

If you didn't understand what I said call me back !