Score wont increase when enemies die

i have a game where the enemies spawn on one side and fly to the right where the player is and you have to shoot other projectiles at the enemies and my code is not working can anyone help?

player public class Player : MonoBehaviour { public int health; public int score; public Text textComp;

 void Start()
 {
     score = 0;
 }


 // Update is called once per frame
 void Update()
 {
     textComp.text = score.ToString();

     if (health <= 0)
     {
         Destroy(gameObject);
     }

    }
 void AddScore()
 {
     score = score + 10;
 }

} Enemies(all three are the same but some have other tags to get killed by) public class TriangleEnemy : MonoBehaviour { public int Yspeed; public int Xspeed; public int health; public int addscore;

 public Text textComp;

 public GameObject player;


 private void Start()
 {
     health = 1;
     addscore = 0;
 }
 private void Update()
 {


     if (health <= 0)
     {
         DESTROYED();
     }

     transform.position = new Vector2(transform.position.x + Xspeed, transform.position.y + Yspeed);
 }
 void DESTROYED()
 {
     player.SendMessage("AddScore", SendMessageOptions.DontRequireReceiver);
     Destroy(gameObject);
 }

 void OnTriggerEnter2D(Collider2D other)
 {
     if (other.CompareTag("Triangle"))
     {
         health--;
     }
     if (other.CompareTag("Player"))
     {
         other.GetComponent<Player>().health--;
         Destroy(gameObject);
     }
     if (other.CompareTag("PauseMenu"))
     {
         Destroy(gameObject);
     }

 }

} SquareEnemy public class Enemy : MonoBehaviour { public GameObject player; public int Yspeed; public int Xspeed; public int health; private void Start() { health = 1; player = GameObject.FindGameObjectWithTag("Player"); } private void Update() {

     if (health <= 0)
     {
         DESTROYED();
     }

     transform.position = new Vector2(transform.position.x + Xspeed, transform.position.y + Yspeed);
 }
 void DESTROYED()
 {
     player.SendMessage("AddScore", SendMessageOptions.DontRequireReceiver);
     Destroy(gameObject);
 }
 void OnTriggerEnter2D(Collider2D other)
 {
     if (other.CompareTag("Cube"))
     {
         health--;
     }
     if (other.CompareTag("Player"))
     {
         other.GetComponent<Player>().health--;
         Destroy(gameObject);
     }
     if (other.CompareTag("PauseMenu"))
     {
         Destroy(gameObject);
     }

 }

}

Any help will be appreciated for a beginner like me. :)