MY TIMER RESTART WHEN RELOADING THE SCENE.

WHEN RELOAD MY SCENE BECAUSE OF WRONG INPUT I WANT MY TIMER IS STILL RUNNING IT WILL STOP IF THEY PUT THE CORRECT POSITION

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 using UnityEngine.SceneManagement;
 using System.Security.Cryptography;
 
 public class vRingLevel1GameControl1 : MonoBehaviour
 {
     public static vRingLevel1GameControl1 instance;
     public GameObject vRingL1Close, vRingLevel1Close2, vRingLevel1Slide, vRingPole, vRingBlue1, vRingRed1, vRingYellow1;
     public Text timeCounter, countdownText, congratsText;
     public bool gamePlaying { get; private set; }
     public int countdownTime;
     private float startTime, elapsedTime;
     TimeSpan timePlaying;
 
     public static int slotsOccupied;
     [SerializeField]
     private Transform[] rings;
     [SerializeField]
     private GameObject wrongSign;
 
     private void Awake()
     {
         instance = this;
     }
 
     private void Start()
     {
         timeCounter.gameObject.SetActive(false);
         congratsText.gameObject.SetActive(false);
         vRingL1Close.SetActive(false);
         vRingLevel1Close2.SetActive(false);
         vRingLevel1Slide.SetActive(false);
         vRingPole.SetActive(false);
         vRingBlue1.SetActive(false);
         vRingRed1.SetActive(false);
         vRingYellow1.SetActive(false);
         timeCounter.text = "00:00";
         gamePlaying = false;
         StartCoroutine(CountdownToStart());
 
         vRingLevel1Drag.PuzzleDone += CheckResults;
         slotsOccupied = 0;
         wrongSign.SetActive(false);
     }
 
     private void BeginGame()
     {
 
         gamePlaying = true;
         startTime = Time.time;
     }
 
     private void Update()
     {
 
         if (vRingLevel1Close.locked)
         {
             vRingLevel1Close.locked = false;
             SceneManager.LoadScene("vRingLevelUI");
         }
 
         if (gamePlaying)
         {
             elapsedTime = Time.time - startTime;
             timePlaying = TimeSpan.FromSeconds(elapsedTime);
             string timePlayingStr = timePlaying.ToString("mm':'ss");
             timeCounter.text = timePlayingStr;
         }
     }
 
     public void CheckResults()
     {
         if (rings[0].position.y == -0.04f &&
             rings[1].position.y == -1.81f &&
             rings[2].position.y == -3.62f)
         {
             gamePlaying = false;
             congratsText.gameObject.SetActive(true);
         }
         else
         {
             wrongSign.SetActive(true);
             Invoke("ReloadGame", 1f);
         }
     }
 
     private void ReloadGame()
     {
         vRingLevel1Drag.PuzzleDone -= CheckResults;
         SceneManager.LoadScene("vRingLevel1");
     }
 
     IEnumerator CountdownToStart()
     {
         while (countdownTime > 0)
         {
             countdownText.text = countdownTime.ToString();
             yield return new WaitForSeconds(1f);
             countdownTime--;
         }
         BeginGame();
         countdownText.text = "GO!";
         yield return new WaitForSeconds(1f);
         timeCounter.gameObject.SetActive(true);
         countdownText.gameObject.SetActive(false);
         congratsText.gameObject.SetActive(false);
         vRingL1Close.SetActive(true);
         vRingBlue1.SetActive(true);
         vRingRed1.SetActive(true);
         vRingYellow1.SetActive(true);
         vRingPole.SetActive(true);
     }
 }