2D game score

Hello,

I am creating a 2D game with falling objects which you have to catch. But now I want to update my score when I catch them. I have a score script and a UI text.

This is my c# score script:

 public Text scoreText;
 public int krolschValue;

 private int score;


 void start () {
     score = 0;
     UpdateScore ();
 }

 void onTriggerEnter2D () {
     score += krolschValue;
     UpdateScore ();
 }

 void UpdateScore () {
     scoreText.text = "Score:\n" + score;
 }

}

On the onTriggerEnter2D my Value should be updated by one. But it does not show on the screen. I have no errors so I have no idea what the problem is..

Bram