2D null missing reception exception, entering in/out of a scene multiple times breaks the game, some aspects clashing with my picking up item code

Hello everyone, I am having some trouble with my scene transitions. I currently have a scene transition setup, but after I enter and reenter a scene 2 times, the code breaks and has a null expectation error with my picking up item code. Null error is at line 15 for the pickupitem code

This is the picking up item code.

 using System.Collections;
 using System.Collections.Generic;
 using System;
 using UnityEngine;
 
 public class PickUpItem : MonoBehaviour
 {
     Transform player1;
     [SerializeField] float speed = 5f;
     [SerializeField] float pdistance = 1.5f;
     [SerializeField] float tt1 = 10f;
     [SerializeField]GameObject temp;
     private void Awake()
     {
         player1 = GameManager.instance.player.transform;
     }
 
     private void Update()
     {
         if(player1 != null) { 
             float distance2 = Vector2.Distance(transform.position, player1.position);
             if (distance2 > pdistance)
             {
                 return;
             }
             transform.position = Vector3.MoveTowards(transform.position, player1.position, speed * Time.deltaTime);
 
             if (distance2 < 0.1f)
             {
                 temp = GameObject.FindGameObjectWithTag("Branch");
                 Destroy(temp);
             }
             }
         
     }
 
 }

This is the transition code

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 
 public enum TransitionType
 {
     Warp,
     Scene
 }
 
 public class Transition : MonoBehaviour
 {
     [SerializeField] TransitionType transitionType;
     [SerializeField] string SceneName;
     Transform destination;
     void Start()
     {
         destination = transform.GetChild(1);
     }
 
     internal void initiateTransition(Transform toTransition)
     {
         switch (transitionType)
         {
             case TransitionType.Warp:
                 toTransition.position = new Vector3(destination.position.x, destination.position.y, toTransition.position.z);
                 break;
             case TransitionType.Scene:
                 SceneManager.LoadScene(SceneName);
                 break;
         }
         
     }
 }

TransitionArea

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

public class TransitionArea : MonoBehaviour { private void OnTriggerEnter2D(Collider2D collision) { if (collision.transform.CompareTag("Player")) { transform.parent.GetComponent().initiateTransition(collision.transform); } } }