Problem with ScoreBoard in Ping Pong game

Hello Can you help me with my code for scoreboard in a simple PingPong game.

Thank you!

 public Text Scoreboard;
 public GameObject ball; 
 private int Bump1_Score = 0;
 private int Bump2_Score = 0;



 void Start () {

     ball = GameObject.Find("Ball");
     
 }


 void Update() {

     if (this.transform.position.x >= 14f)
     {
         Bump2_Score++;
     }

     if (this.transform.position.x <= -14f)
     {
         Bump1_Score++;
     }

     Scoreboard.text = Bump1_Score.ToString() + Bump2_Score.Tostring();


     print(Bump1_Score + "   ,   " + Bump2_Score);
 }

}