My Turrent Trigger does not work

Hey guys my script does not do enything end it does not give a bug

i dont know what i did wrong Can You Help Me?.

 using UnityEngine;
 using System.Collections;
 
 public class SwitchGunTurrent : MonoBehaviour
 {
     public GameObject Player; // The player is taged Player.
     public GameObject Turrent;  // The Gun Turremt With 2 GameObjects The Turrent its Self and The Player Turrent. 
     public GameObject On_turrent; // The Player Turrent.
 
     void Start()
     {
         Player = GameObject.FindWithTag("Player");// Find Player
         Player.SetActive(true);
         On_turrent.SetActive(false);
     }
 
     void Update()
     {
 
     }
 
     void OnTriggerEnter(Collision col) // Enter The Turrent OnTriggerEnter And GetKeyDown E. When GetKey E for the Secondtime Switch Back To The Player?. 
     {
         if (col.gameObject.name == "Player")
         {
             if (Input.GetKeyDown(KeyCode.E))
             {
                 On_turrent.SetActive(true);
                 Player.SetActive(false);
             }
             else if (On_turrent == true)
             {
                 On_turrent.SetActive(false);
                 Player.SetActive(true);
             }
         }
     }
 }