When i press a button on the game scene its starts the game, how i can solve it ?

Hello guys, I had a problem and I have been searching for the solution for a week and I didn't get any result, I have a shop button on the game scene when I press the button it should pop up a scrollRect, I realized I should block raycasts I tried to add graphic raycaster and image that's covers the whole screen to block the raycasts, I tried to add canvas group and doesn't work too, my game its look like subway surf, the game starts when I touch the screen, I have one scene that's content a shop button and the game too, what I want to when I press the shop button its open the scroll rect NOT to start the game PLEASE HELP, I would appreciate who will help me !

MobileInput script

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class MobileInput : MonoBehaviour {
 
     private const float DEADZONE = 100.0f;
 
     public static MobileInput Instance { set; get;  }
 
     private bool tap, swipeLeft, swipeRight, swipeUp, swipeDown;
     private Vector2 swipeDelta, startTouch;
 
     public bool Tap { get { return tap; } }
     public Vector2 SwipeDelta { get { return swipeDelta; } }
     public bool SwipeLeft { get { return swipeLeft; } }
     public bool SwipeRight { get { return swipeRight; } }
     public bool SwipeUp { get { return swipeUp; } }
     public bool SwipeDown { get { return swipeDown; } }
 
     private void Awake()
     {
         Instance = this;
     }
 
     private void Update()
     {
         //Reseting all the booleans
         tap = swipeLeft = swipeRight = swipeUp = swipeDown = false;
 
         //Let's check for inputs
         #region Stanedalone Inputs
         if (Input.GetMouseButtonDown(0))
         {
             tap = true;
             startTouch = Input.mousePosition;
         }
         else if (Input.GetMouseButtonUp(0))
         {
             startTouch = swipeDelta = Vector2.zero;
         }
         #endregion
 
 
 
         #region Mobile Inputs
         if (Input.touches.Length != 0)
         {
             if (Input.touches[0].phase == TouchPhase.Began)
             {
                 tap = true;
                 startTouch = Input.mousePosition;
             }
 
             else if (Input.touches[0].phase == TouchPhase.Ended || Input.touches[0].phase == TouchPhase.Canceled)
             {
                 startTouch = swipeDelta = Vector2.zero;
             }
 
         }
         #endregion
 
         //Caluclate distance
         swipeDelta = Vector2.zero;
         if (startTouch != Vector2.zero)
         { 
             //Let's check with mobile 
             if (Input.touches.Length != 0)
 
             {
                 swipeDelta = Input.touches[0].position - startTouch;
             }
             //Lets check with standalone
             else if (Input.GetMouseButton(0))
             {
                 swipeDelta = (Vector2)Input.mousePosition - startTouch;
             }
         }
 
         //Let's check if we're beyond the deadzone 
         if (swipeDelta.magnitude > DEADZONE)
         { 
             // this is a confirmed swipe
             float x = swipeDelta.x;
             float y = swipeDelta.y;
 
             if (Mathf.Abs(x) > Mathf.Abs(y))
             {
                 // Left or right
                 if (x < 0)
                     swipeLeft = true;
                 else
                     swipeRight = true;
             }
 
             else
             { 
                 // Up or Down
                 if (y < 0)
                     swipeDown = true;
                 else
                     swipeUp = true;
             }
 
             startTouch = swipeDelta = Vector2.zero;
         }
     }
 }

CameraMotor script

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class CameraMotor : MonoBehaviour {
 
     public Transform MainCharacter; // Our character // Object we're looking at
     public Vector3 offest = new Vector3(0, 5.0f, -10.0f);
     public Vector3 rotation = new Vector3(15, 0, 0);
 
     public bool IsMoving { set; get; }
 
     void Update()
     {
 
     }
 
     private void LateUpdate()
     {
         if (!IsMoving)
             return;
 
         Vector3 desiredPosition = MainCharacter.position + offest;
         desiredPosition.x = 0;
         transform.position = Vector3.Lerp(transform.position, desiredPosition, Time.deltaTime);
         transform.rotation = Quaternion.Lerp(transform.rotation,Quaternion.Euler(rotation),0.1f);
     }
 }
 

GameManager script

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 
 public class GameManager : MonoBehaviour {
 
     private const int COIN_SCORE_AMOUNT = 1;
 
     public static GameManager Instance { set; get; }
 
     public bool isDead { set; get; }
     private bool isGameStarted = false;
     private PlayerMotor motor;
 
     // UI and UI fields 
     public Animator gameCanvas, MenuAnim, diamondAnim;
     public Text scoreText, coinText, modifierText, hiscoreText;
     private float score, coinScore, modifierScore;
     public int coinsToAdd;
     private int lastScore;
 
     //Death Menu
     public Animator deathMenuAnim;
     public Text DeadScoreText, DeadCoinText;
 
     //Hats shop
     public List<int> hatPrices;
     public Transform hatContainer;
     public Transform hatButtonContainer;
     private int unlockedHats = 1;
 
     //Test
     public GameObject backButton;
     public GameObject arrowsPanel;
     public GameObject currencyText;
     public GameObject hidingShopButtonFromTheShop;
     public Text currencyTxt;
 
     public ScrollRect myScrollRect;
 
     private void Awake()
     {
         Instance = this;
         modifierScore = 1;
         motor = GameObject.FindGameObjectWithTag("Player").GetComponent<PlayerMotor>();
 
         modifierText.text = "x" + modifierScore.ToString("0.0");
         coinText.text = coinScore.ToString("0");
         scoreText.text = scoreText.text = score.ToString("0");
 
         hiscoreText.text = PlayerPrefs.GetInt("Hiscore").ToString();
 
         backButton.SetActive(false);
         arrowsPanel.SetActive(false);
         currencyText.SetActive(false);
         hidingShopButtonFromTheShop.SetActive(true);
     }
 
     private void Update()
     {
         if (MobileInput.Instance.Tap && !isGameStarted)
         {
             isGameStarted = true;
             motor.StartRunning();
             FindObjectOfType<GlacierSpawner>().IsScrolling = true;
             FindObjectOfType<CameraMotor>().IsMoving = true;
             gameCanvas.SetTrigger("Show");
             MenuAnim.SetTrigger("Hide");
         }
         if (isGameStarted && !isDead)
         {
             //Bump up the score 
             score += (Time.deltaTime * modifierScore);
             if (lastScore != (int)score)
             {
                 lastScore = (int)score;
                 scoreText.text = score.ToString("0");
             }
         }
     }
 
     public void GetCoin()
     {
         CoinManager.SavingTheCoins(coinsToAdd);
         diamondAnim.SetTrigger("Collect");
         coinScore++;
         coinText.text = coinScore.ToString("0");
         score += COIN_SCORE_AMOUNT;
         scoreText.text = score.ToString("0");
     }
 
     public void UpdateModifier(float modifierAmount)
     {
         modifierScore = 1.0f + modifierAmount;
         modifierText.text = "x" + modifierScore.ToString("0.0");
     }
 
     public void OnDeath()
     {
         isDead = true;
         FindObjectOfType<GlacierSpawner>().IsScrolling = false;
         DeadScoreText.text = score.ToString("0");
         DeadCoinText.text = coinScore.ToString("0");
         deathMenuAnim.SetTrigger("Dead");
         gameCanvas.SetTrigger("Hide");
 
         // Check if this is a highscore
         if (score > PlayerPrefs.GetInt("Hiscore"))
         {
             float s = score;
             if (s % 1 == 0)
                 s += 1;
             PlayerPrefs.SetInt("Hiscore", (int)s);
         }
     }
     
     //Hats
 
     private void SetHatMenu()
     { 
         // Price
         int i = 0;
         foreach (Transform t in hatButtonContainer)
         { 
             // If already unlocked 
             if ((unlockedHats & 1 << i) == 1 << i)
                 t.GetChild(1).gameObject.SetActive(false);
             else
                 t.GetChild(1).GetComponentInChildren<Text>().text = hatPrices[i].ToString();
 
             i++;
         }
     }
 
     { 
         // If unlocked hats
         if ((unlockedHats & 1 << index) == 1 << index)
         {
             Debug.Log(unlockedHats);
             //Physical changes
             foreach (Transform t in hatContainer)
                 t.gameObject.SetActive(false);
 
             if (index == 0)
                 return;
             hatContainer.GetChild(index - 1).gameObject.SetActive(true);
         }
         else
         {
             if (CoinManager.Coins >= hatPrices[index])
             {
                 CoinManager.Coins -= hatPrices[index];
 
                 // Unlock in array
                 unlockedHats += 1 << index;
 
                 // Physical change
                 foreach (Transform t in hatContainer)
                     t.gameObject.SetActive(false);
 
                 if (index == 0)
                     return;
 
                 hatContainer.GetChild(index - 1).gameObject.SetActive(true);
 
                 hatButtonContainer.GetChild(index).GetChild(1).gameObject.SetActive(false);
 
                 Debug.Log(hatPrices);
             }
         }
     }
 
     //Dead panel buttons
     
     public void OnRestartButton()
     {
         UnityEngine.SceneManagement.SceneManager.LoadScene("Game");
     }
 
     public void OnShopClick()
     {
         myScrollRect.horizontalNormalizedPosition = 0.5f;
     }
 
     public void OnStartClick()
     {
         UnityEngine.SceneManagement.SceneManager.LoadScene("Game");
     }
 }