Enemy attacking enemy when defeated

hi, I'm trying to make a 2d top down game where if I defeat an enemy, then the enemy fights for me. I'm trying to destroy the original enemy object when health = 0 and will set is Dead bool to true, then the other enemy will spawn and attack enemies. but when i kill the enemy, the second enemy doesn't show. here is my code for the second enemy script:

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class goblinzob : MonoBehaviour { public float speed; private Transform target; private Transform target2; public Animator animator; public Animator aNimator; public Transform homePos; public int maxHealth = 50; public int currentHealth; public HealthBar healthbar; Vector2 movement; public EnemyFollow ef;

 // Start is called before the first frame update
 void Start()
 {
     target = GameObject.FindGameObjectWithTag("Player").GetComponent<Transform>();
     target2 = GameObject.FindGameObjectWithTag("Enemy").GetComponent<Transform>();
     currentHealth = maxHealth;
     healthbar.SetMaxHealth(maxHealth);
     gameObject.SetActive(false);
 }

 // Update is called once per frame
 void Update()
 {
         movement.x = target.position.x - transform.position.x;
         animator.SetFloat("Horizontal", movement.x);
         animator.SetFloat("Speed", movement.sqrMagnitude);
         aNimator.SetFloat("Horizontal", movement.x);
         aNimator.SetFloat("Speed", movement.sqrMagnitude);


         if(Vector2.Distance(transform.position, target2.position) < 300 && ef.isDead == true)
     {
         transform.position = transform.position = Vector2.MoveTowards(transform.position, target2.position, speed * Time.deltaTime);
     }
     else if (ef.isDead == true)
     {
         transform.position = transform.position = Vector2.MoveTowards(transform.position, target.position, speed * Time.deltaTime);
     }

         if(Vector2.Distance(transform.position, target2.position) < 50f && ef.isDead == true)
     {
         aNimator.SetBool("IsAttacking", true);
     }
     else if (ef.isDead == true)
     {
         aNimator.SetBool("IsAttacking", false);
     }

         if(Vector2.Distance(transform.position, target.position) < 40f && ef.isDead == true)
     {
         animator.SetBool("HomePosition", true);
     }
     else if (ef.isDead == true)
     {
         animator.SetBool("HomePosition", false);
     }

         if(Vector2.Distance(transform.position, target2.position) < 40f && ef.isDead == true)
     {
         animator.SetBool("HomePosition", true);
     }
     else if (ef.isDead == true)
     {
         animator.SetBool("HomePosition", false);
     }
     
     if(ef.isDead == true)
     {
         gameObject.SetActive(true);
         transform.position = target2.position; 
     }
 }
     
     public void TakeDamage(int damage)
 {
     currentHealth -= damage;
     healthbar.SetHealth(currentHealth);
 }

}