Why is my ball Destroyed?

I am making a breakout game, and when the player gets game over i just want the ball to not render and stop moving but for some reason it also destroys the ball, i really don't get it. The reason i don't want the ball to be destroyed is because it have some parts i want to keep in the game after you lose like a menu system and some music. Here is my script.

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class BallScript : MonoBehaviour {
     public float multiplier = 1.1f;
     public float minSpeed = 15;
     public float maxSpeed = 20;
     
     public float curSpeed = 0;
     
     private Transform _t;
     
     public List<GameObject> blocks;
     
     private bool Menushown;
     
     void Awake()
     {
         _t = transform;
         
         blocks = new List<GameObject>();
     }
     // Use this for initialization
     void Start () 
     {
         blocks.AddRange(GameObject.FindGameObjectsWithTag("Block"));
         
         ResetBall();
         
         Menushown = false;
     }
     
     // Update is called once per frame
     void Update () 
     {
         if(blocks.Count < 1)
             WonLevel();
             
         if(_t.position.y < -4.5)
             MissedBall();
     }
     
     void FixedUpdate()
     {
         curSpeed = Vector3.Magnitude(rigidbody.velocity);
         
         if(curSpeed > maxSpeed)
             rigidbody.velocity /= curSpeed / maxSpeed;
         
         if(curSpeed < minSpeed && curSpeed > 0)
             rigidbody.velocity /= curSpeed / minSpeed;
         
     }
     
     void OnCollisionEnter(Collision col)
     {
         rigidbody.velocity += rigidbody.velocity * multiplier;
         
         if(col.gameObject.CompareTag("Block"))
             blocks.Remove(col.gameObject);
         
         Debug.LogWarning("Blocks Left: " + blocks.Count);
     }
 
      void MissedBall()
     {
         if(LiveScript.curLives -- < 2)
             GameOver();
         else
             ResetBall();        
     }
     
     private void ResetBall()
     {
         _t.position = new Vector3(-PlayerScript.xBoundry + 2,PlayerScript.xBoundry - 2,PlayerScript.zPosition);
         _t.LookAt(GameObject.FindGameObjectWithTag("Player").transform.position);
         
         rigidbody.AddRelativeForce(new Vector3(0,0,minSpeed));
     }
     
     
     private void GameOver()
     {            
         Debug.Log("GameOver");
         renderer.enabled = false;
         rigidbody.velocity = Vector3.zero;
         _t.position = Vector3.zero;
         Menushown = true;
         
     }
     
     private void WonLevel()
     {
         Debug.Log("We Won Level");
     }
     
     void OnGUI()
     {
         if(Menushown)
         {
             if (GUI.Button(new Rect(10, 70, 50, 30), "Click"))
             Debug.Log("Clicked the button with text");
         }
     }
 }