How to fix this?

[ihsano7]

using UnityEngine;
using System.Collection;

public class ARMenu : MonoBehavior {
  //Membuat variabel untuk resize layar
  public GUISkin guiSkin;
  private float guiRatio;
  private float sWidth;
  private Vector3 GUIsF;

  public GameObject sphere;
  public float kecepatanRotasi = 50f;
  bool statusRotasi = false;

  void Awake(){
    sWidth = Screen.width;
    guiRatio = sWidth/1920;
    GUIsF = new Vector3(guiRatio,guiRatio,1);
  }

  void OnGUI(){
    GUI.skin = guiSkin;
    //letakkan function disini
    Rotasi();
  }

  void Rotasi(){
    //Meletakkan tombol dipojok kanan atas
    GUI.matrix = Matrix4x4.TRS(new Vector3(Screen.width-258*GUIsF.x,GUIsF.y,0),Quartenion.identity,GUIsF);

    if (statusRotasi==false){
      if(GUI.Button(new Rect(-208,10,238,59),”Rotasi”)){
      statusRotasi = true;
      }
    }else{
      if(GUI.Button(new Rect(-208,10,238,59),”Stop Rotasi”)){
      statusRotasi = false;
     }          
    }

    if(GUI.Button(new Rect(40,10,208,59),“Keluar”){
      Application.Quit(); //Keluar dari aplikasi
    }
  }

  void Update(){
    if(statusRotasi==true){
      sphere.transform.Rotate(Vector3.up, kecepatanRotasi * Time.deltaTime);
    }
  }
}

[Valjuin]

I don’t know what needs to be fixed because this is what your image looks like:

However, there is a spelling mistake in line 4. Monobehavior should have a letter u, as follows: Monobehaviour.

Also, line 2 should read: using System.Collections;