Unity High Score problemi

using UnityEngine; 
  using UnityEngine.UI; 
  using System.Collections; 
   
  public class ScoreManager : MonoBehaviour 
  { 
  	public static int score;        // The player's score. 
  	 
  	 
  	Text text;                      // Reference to the Text component. 
  	 
  	 
  	void Awake () 
  	{ 
  		// Set up the reference. 
  		text = GetComponent <Text> (); 
  		 
  		// Reset the score. 
  		score = 0; 
  	} 
   
  	 
  	void Update () 
  	{ 
  		// Set the displayed text to be the word "Score" followed by the score value. 
  		text.text = "Score: " + score; 
   
  	} 
  	 
  }

if(skor>yuksekskor){ 
  PlayerPrefs.SetInt(yuksekskor, skor); 
  PlayerPrefs.Save(); 
  }