Player not taking damage on collision with enemy

I'm having a strange issue where my player is not taking any damage when colliding with the enemy. I have Rigidbody 2D set to both of them and the appropriate tags set, but somehow my player is not taking any damage. I am at a loss, could the sprites im using cause this?

PlayerHealthController

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class PlayerHealthController : MonoBehaviour
 {
 
     public static PlayerHealthController instance;
 
     private void awake()
     {
         instance = this;
     }
 
     //[HideInInspector]
     public int currentHealth;
     public int maxHealth; 
 
 
 
     // Start is called before the first frame update
     void Start()
     {
         currentHealth = maxHealth;
     }
 
     // Update is called once per frame
     void Update()
     {
         
     }
 
 
     public void DamagePlayer(int damageAmount)
     {
         currentHealth -= damageAmount;
 
         if(currentHealth <= 0)
         {
             currentHealth = 0;
 
                 gameObject.SetActive(false);
         }
     }
 }

PlayerDamage

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class DamagePlayer : MonoBehaviour
 {
 
     public int damageAmount = 1;
 
     private void onCollisionEnter2D(Collision2D other)
     {
         if(other.collider.gameObject.tag == "Players")
         {
             DealDamage();
         }
     }
 
     private void onTriggerEnter2D(Collider2D other)
     {
         if(other.tag == "Players")
         {
             DealDamage();
         }
     }
 
     //health controller
     void DealDamage()
     {
         PlayerHealthController.instance.DamagePlayer(damageAmount); 
 
     }
 
 }