"Array index is out of range" Please Help !!!

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

public class DiceGame : MonoBehaviour { private const int max = 6; private string btnText = "Press to roll"; public static string FacebookId = "1"; private Dictionary scores; //The key is the facebook id, value is his score. private Dictionary fbProfileImages = new Dictionary ();

 void Start()
 {
     scores = new Dictionary<string, int>();
     StartCoroutine(retrieveHighscores());
     fbProfileImages = new Dictionary<string, Texture2D>();
 }

 void OnGUI()
 {
     if (GUI.Button(new Rect(10, 10, 200, 50), btnText))
     {
         int score = UnityEngine.Random.Range(1, max + 1);
         btnText = string.Format("You rolled {0}, \nclick to try again.", score);

         StartCoroutine(submitHighscore(score, FacebookId));
     }

     float h = 10;
     foreach (var score in scores)
     {
         GUI.Label(new Rect(300, h, 200, 50), score.Value.ToString());

         if (fbProfileImages != null && fbProfileImages.ContainsKey(score.Key))
             GUI.DrawTexture(new Rect(230, h, 50, 50), fbProfileImages[score.Key]);
         
         h += 60;
     }
 }

 IEnumerator submitHighscore(int score, string fbid)
 {
     WWW webRequest = new WWW("http://localhost/insert_highscore.php?score=" + score + "&fbid=" + fbid);
     yield return webRequest;

     yield return retrieveHighscores(); //After we submit we'd want an update, perhaps someone else played too!
 }

 IEnumerator retrieveHighscores()
 {
     WWW webRequest = new WWW("http://localhost/get_highscores.php");
     yield return webRequest;

     string[] lines = webRequest.text.Split(new string[] { "\n" }, StringSplitOptions.RemoveEmptyEntries);
 
     scores = new Dictionary<string, int>(); //Always reset our scores, as we just got new ones.
 
     foreach (string line in lines)
     {
 
         string[] parts = line.Split(',');
         
         string id = parts[0];
         int score = int.Parse(parts[1]);
         
 
         if (!fbProfileImages.ContainsKey(id)) //Have we already loaded this user before?
         {
             //No, better get our image!
             WWW imageRequest = new WWW("http://graph.facebook.com/" + id + "/picture");
             yield return imageRequest;
             fbProfileImages.Add(id, imageRequest.texture);
         }

         scores.Add(id,score);            
     }                
 }

}

In line 66 which is "int score = int.Parse(parts[1]);" is error array index is out of range. i've already find other similar topic but i can't slove this problem and i can't Build my project. But it's work if i put variable manually "int score = 999;" which is not the point of using split array

Please help me rewrite the code

thank you.