Tapping doesn't work when played on iPhone

There spawns enemies in my game, which u have to tap to kill. The problem is, when i test my game on my iphone by exporting it through xcode, i can't tap them. When i click on them with my mouse, on my computer it works, and when i use the unity remote app, i can tap them. But not when i export it to my iPhone. Everything else works in my game, but i cant tap the enemies.

The script i use for is this:

 using UnityEngine;
  using System.Collections;
  using System.Collections.Generic;
  
  public class TouchInput : MonoBehaviour {
  
      public LayerMask touchInputMask;
      
      private List<GameObject> touchList = new List<GameObject>();
      private GameObject[] touchesOld;
      private RaycastHit hit;
      
      // Update is called once per frame
      void Update () {
          
          
  #if UNITY_EDITOR
      
      if(Input.GetMouseButton(0) || Input.GetMouseButtonDown(0)  || Input.GetMouseButtonUp(0)) {
          
          touchesOld = new GameObject[touchList.Count];
              touchList.CopyTo(touchesOld);
              touchList.Clear();
   
          
          
                    Ray ray = GetComponent<Camera>().ScreenPointToRay(Input.mousePosition);
                  
                    
                    if(Physics.Raycast(ray,out hit,touchInputMask)) {
                        
                        GameObject recipient = hit.transform.gameObject;
                        touchList.Add(recipient);
                        
                        if(Input.GetMouseButtonDown(0)) {
                            recipient.SendMessage("OnTouchDown", hit.point, SendMessageOptions.DontRequireReceiver);
                            
                        }  if(Input.GetMouseButtonDown(0)) {
                            recipient.SendMessage("OnTouchUp", hit.point, SendMessageOptions.DontRequireReceiver);
                            
                        }  if(Input.GetMouseButtonUp(0)) {
                            recipient.SendMessage("OnTouchStay", hit.point, SendMessageOptions.DontRequireReceiver);
                            
                        }  
                  
      
                      }
                   
                   foreach (GameObject g in touchesOld) {
                       if(!touchList.Contains(g)) {
                           g.SendMessage("OnTouchExit", hit.point, SendMessageOptions.DontRequireReceiver);
                       }
                       
                   }
          
              }
      
  #endif
          
          
          
          
          
      
          }
  }

And on my enemy i have a script saying:

     void OnTouchDown () {
                 if(GameObject.Find("spawn_Controller").GetComponent<Spawn>().gameOver == false) {
 
           health = health -1;
             Instantiate(blood,gameObject.transform.position, Quaternion.identity);
              audio.PlayOneShot(gunShot, 0.7F);
                audio.PlayOneShot(bloodSplat, 0.7F);
                 }
         
     }

Can someone tell what is wrong?