On button Load script not working (Tell me if you need more information)

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

public class Load : MonoBehaviour {

public void LoadLevel (int sceneIndex)
{
    StartCoroutine(LoadAsynchronuosly(sceneIndex));

}

IEnumerator LoadAsynchronuosly (int sceneIndex)
{
    AsyncOperation operation = SceneManager.LoadSceneAsync(sceneIndex);
        {

    while (!operation.isDone)
    {
        Debug.Log(operation.progress);

        yield return null;
    }
        }
}

(Here is a screenshot of the button)

121905-help.png

Make sure that you have EventSystem in your scene.

THANk UUUUUUUUUUUUUUUUUUUUUUUUUUUU