unity代码ScenceManager报错不知道怎么解决

代码如下，代码中ScenceManager被标红线报错
用的是unity2021.2.0f1c1
想问下怎么解决，谢谢

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class zhuangbei : MonoBehaviour
{
    // Start is called before the first frame update
    public void OnStartGame(int ScenceNumber){
        ScenceManager.LoadScence(ScenceNumber);
    }
    void Start()
    {
       
    }

    // Update is called once per frame
    void Update()
    {
       
    }
}

英文你打错了，scenemanager.loadscene