Why this middle code doesnt want to run, Playerpref problem

I wanted to SetActive the star3 in level button UI after play game. Unfortunatelly it only can active to 2 levels, the last level which is level 3 didnt happen. So weird. Does anyone know why?

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 using UnityEngine.SceneManagement;
 
 public class LevelControl : MonoBehaviour
 {
 
 
     public Button level02Button, level03Button;
     int levelPassed;
 
     public GameObject star1, star2, star3;
 
     void Start () {
         levelPassed = PlayerPrefs.GetInt ("LevelPassed");
         
         level02Button.interactable = false;
         level03Button.interactable = false;
 
 
 
         if (levelPassed == 15) {
             level02Button.interactable = true;
             level03Button.interactable = false;
 
             star1.SetActive(true);   //WORKING
 
                 Debug.Log("Star level 1 is shown");
         }
 
         if (levelPassed == 21) {
             level02Button.interactable = true;
             level03Button.interactable = true;
 
     
             star1.SetActive(true);
             star2.SetActive(true);      //WORKING
 
            Debug.Log("Star Level 2 is shown");
 
         }
 
         if (levelPassed == 26) {
     
             star1.SetActive(true);
             star2.SetActive(true);
             star3.SetActive(true);    //NOT WORKING
 
             Debug.Log("Star level 3 is shown");
     
 // IM SURE THAT I ALREADY PASS THE LEVEL 26, WITH IS LEVEL 3. STILL STAR LEVLE 3 NOT UPDATE.

         }
 
     }
 
 
 
     public void levelToLoad (int level)
     {
         UnityEngine.SceneManagement.SceneManager.LoadScene (level);
 
     }
 
     public void resetPlayerPrefs()
     {
 
         PlayerPrefs.DeleteAll ();
     }
 
 }