Why the player's movement freezes when I change the game's sound effects?

Questions & Answers
1

Hi,everyone!
The problem is:
When I added on my settings menu a option to adjust the volume of the game and I played the first level,I could move my player without any problem,but when I activated the pause menu and clicked the menu option so that I could go to the main menu to change the volume again and I went back,my player couldn’t move,I pressed “w” and it wasn’t moving.I’ll put the player movement script here:

using UnityEngine;

public class PlayerMoviment : MonoBehaviour
{   //É uma referência para "Rigidbody" o "rb"
      public Rigidbody rb;
      public float forwardForce = 2000f;
      
    // Update is called once per frame
    //FixedUpdate é usado para brincar com o código
    void FixedUpdate() 
    {  //Adiciona uma força para frente
        rb.AddForce(0 ,0, forwardForce * Time.deltaTime);

        if (Input.GetKey("d"))
        {
          //É apenas executado se a condição é apresentada
          rb.AddForce(40 * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
        }
        
        if (Input.GetKey("a")) 
        {
           rb.AddForce(-40 * Time.deltaTime, 0, 0, ForceMode.VelocityChange);
		}

        if (Input.GetKey("w"))
        {
          rb.AddForce(0, 34 * Time.deltaTime, 0, ForceMode.VelocityChange);   
        }

        if (Input.GetKey("s"))
        {
          rb.AddForce(0, 0, -34 * Time.deltaTime, ForceMode.VelocityChange);
        }

          if (rb.position.y < -1f) 
          { 
        
             FindObjectOfType<GameManager>().EndGame();

		  }
       
       }
   }
2

How does it activate the menu itself ?

Do you manipulate timescale at any point of the pause?

Regards