problem with switch scense

Tell me what to do if I use a script to switch between scenes, then when I switch from 1 to 2, then 2 nothing works, no buttons and functions

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine. SceneManagement;

public class Switch: MonoBehaviour
{

    public void scenLoad(int numbScen)
    {
        SceneManager.LoadScene(numbScen);
    }
}

this is script

If scene 2 doesn’t contain all you need in it it won’t work.