Pickup script not workimg

Hello im working on a 2d game like mario and i need a coin script. Im not having any errors but i just go through the coin which i made from a sphere. Here's my script,can anyone tell me what i did wrong?thanks

Coin script

 var CoinSound: AudioClip;
  
 function OnTriggerEnter (info : Collider)
 {
     if  (info.tag == "Player")
     {
        ScoreSystem.myScore += 1;
        AudioSource.PlayClipAtPoint(CoinSound, transform.position);
        Destroy(gameObject);
  
     }
  
 }

Score system

 var CoinSound: AudioClip;
  
 function OnTriggerEnter (info : Collider)
 {
     if  (info.tag == "Player")
     {
        ScoreSystem.myScore += 1;
        AudioSource.PlayClipAtPoint(CoinSound, transform.position);
        Destroy(gameObject);
  
     }
  
 }