Count stops counting after first count.

So I have made a pinball type game with 2 balls and about 40 coins. On each coin I have a script that I will link to the post. However after a ball collides with the first coin it will set the countText in the top right corner to 1 and then ignore the other coins. However the balls still collide with the other coins and set them inactive but they won't count them. Help?

 public Text countText;
 public Text winText; 


 private Rigidbody2D rb2d;
 private int count;
 
 void Start () {
     {

         rb2d = GetComponent<Rigidbody2D> ();

         winText.text = "";

         count = 0;

         SetCountText ();
     }
 }
 
 void Update () {
 }
 

 void OnTriggerEnter2D(Collider2D other)
 {
     Debug.Log ("Triggered!");
     gameObject.SetActive (false);
     count = count + 1;
     SetCountText ();

} void SetCountText() { countText.text = "Count: " + count.ToString ();

 if (count >= 42)
     winText.text = "You win!";
 }

}