Why my input both mouse and touch can't detected?

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

public class DragAndDropGame : MonoBehaviour { [SerializeField] private Transform animalPlace;

 private Vector2 initialPosition;
 private Vector2 mousePosition;
 private float deltax, deltay;
 public static bool locked = false;

 void Start()
 {
     initialPosition = transform.position;
     Debug.Log("Start Sucsess");
     Debug.Log(animalPlace.position.x);
     Debug.Log(animalPlace.position.y);
     Debug.Log(initialPosition.x);
     Debug.Log(initialPosition.y);
 }
 private void Update()
 {
     if (Input.touchCount > 0)
     //Touch firstTouch = Input.GetTouch(0);
     //if (firstTouch.phase == TouchPhase.Began)
     {
         Debug.Log("Input Beta Sucsess");
     }
    
     if (Input.touchCount > 0 && !locked)
     {
         Touch touch = Input.GetTouch(0);
         Vector2 touchPos = Camera.main.ScreenToWorldPoint(touch.position);
         Debug.Log("Input Sucsess");

         switch (touch.phase)
         {
             case TouchPhase.Began:
                 if (GetComponent<BoxCollider2D>() == Physics2D.OverlapPoint(touchPos))
                 {
                     deltax = touchPos.x - transform.position.x;
                     deltay = touchPos.y - transform.position.y;
                     Debug.Log("Began Sucsess");
                 }
                 break;

             case TouchPhase.Moved:
                 if (GetComponent<BoxCollider2D>() == Physics2D.OverlapPoint(touchPos))
                 {
                     transform.position = new Vector2(touchPos.x - deltax, touchPos.y - deltay);
                     Debug.Log("Moved Sucsess");
                 }
                 break;

             case TouchPhase.Ended:
                 if (Mathf.Abs(transform.position.x - animalPlace.position.x) <= 0.5f && Mathf.Abs(transform.position.y - animalPlace.position.y) <= 0.5f)
                 {
                     transform.position = new Vector2(animalPlace.position.x, animalPlace.position.y);
                     locked = true;
                     Debug.Log("End Sucsess");
                 }
                 else
                 {
                     transform.position = new Vector2(initialPosition.x, initialPosition.x);
                     Debug.Log("Lock Sucsess");
                 }
                 break;
         }
     }
 } 

   
 private void OnMouseDown()
 {
     Debug.Log("Mouse Down");
     if (!locked)
     {
         mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
         transform.position = new Vector2(mousePosition.x - deltax, mousePosition.y - deltay);
     }
 }
 private void OnMouseUp()
 {
     Debug.Log("Mouse Up");
     if (Mathf.Abs(transform.position.x - animalPlace.position.x) <= 0.5f && Mathf.Abs(transform.position.y - animalPlace.position.y) <= 0.5f)
     {
         transform.position = new Vector2(animalPlace.position.x, animalPlace.position.y);
         locked = true;
     }
     else
     {
         transform.position = new Vector2(initialPosition.x, initialPosition.x);
     }
 }
 
 

}