I'm having trouble reading and writing a text file. I am suppose to have it to where high scores and players initials are saved and displayed in my game.

 public class hi : MonoBehaviour
 {
     public Text HighScoretext;
     private string filepath;
     List<Highscore> Scores;
 
     void Start()
     {
          this.filepath = Path.Combine(Application.dataPath , "/" + "scores.txt");
         
         if (File.Exists(filepath))
             this.LoadScores();
         
             this.Scores = new List<Highscore>(); 
     }
     private void LoadScores()
     {
         using (StreamReader sr = new StreamReader(Application.dataPath + "/score.txt"))
         {
             string ts = "";
 
             ts = sr.ReadLine();
             while (ts != null)
             {
                 string[] values = ts.Split(',');
                 string initials =values [0];
                 int score= int.Parse( values[1]);
                 Highscore newscore = new Highscore(score, initials);
                 Scores.Add(newscore);
                 ts = sr.ReadLine();
             }
         }
     }
     public void UpdateScores(int score)
     {
         if (score > this.Scores[4].score)
         {
          // Read the initials and create a new highscore object and add it to the list // this.Scores.Add(score);
             this.Scores = this.Scores.OrderByDescending(x => x).Take(5).ToList();
             this.SavesScores();
         }
     }
     //public void GetInitials(string a)
     //{
     //   Scores.Add
 
     //}
     private void SavesScores()
     {
         using (StreamWriter we = new StreamWriter(Application.dataPath + "/score.txt"))
         {
             foreach( Highscore score in Scores)
             {
                 we.WriteLine();
             }
         }
     }
 }
 class Highscore : IComparable
 {
     public int score;
     public string initials;
 
     public Highscore(int s, string i)
     {
         score = s;
         initials = i;
     }
     public int CompareTo(Highscore other)
     {
         return -1 * this.score.CompareTo(other.score);
         }
     public override string ToString()
     {
         return initials+","+score;
     }
 }