how to fix cs1002 error

please help its a cs1002 error lines (16,3) and (24,3)

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

public class start : MonoBehaviour {

public void OnPlayClick () {
	SceneManager.LoadScene("levels minue", LoadSceneMode.Additive);
	if ("levels minue")Scene.isLoaded = true;
	{
		Destroy.Scene("start minue")
	}
}

public void OnSetClick () {
	SceneManager.LoadScene("settings", LoadSceneMode.Additive);
	if ("settings")Scene.isLoaded = true;
	{
		Destroy.Scene("start minue")
	}
}

}

Check here.