Help with respawning paddle and ball in Breakout 3D,Respawning a paddle and ball in Breakout game

I'm making a breakout game in 3D and it's my first time making a game and using Unity so I'm a bit clueless. I've got to the point where my game works fine up until the ball goes off the screen and into the "dead zone". Can someone advise how to respawn the paddle and ball together and carry on with the game? I've included my ball and paddle scripts below, I have a script for the bricks as well but not sure that was relevant. I also made a prefab of the ball and paddle together but no idea what to do with it. Thanks to anyone who can help :)

Code for my ball

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 public class BallScript : MonoBehaviour
 {
 public Rigidbody rbody;

 public float MinVertMovement = 0.1f;
 public float MinSpeed = 10f;
 public float MaxSpeed = 10f;
 private bool hasBeenLaunched = false;

 void Start()
 {

 }
 private float minVelocity = 10f;
 private Vector3 lastFrameVelocity;

 void FixedUpdate()
 {

   if (hasBeenLaunched == false)
   {
     if (Input.GetKey(KeyCode.Space))
     {
       Launch();
     }
   }

   if (hasBeenLaunched)
   {
     Vector3 direction = rbody.velocity;
     direction = direction.normalized;
     float speed = direction.magnitude;
     if (direction.y>-MinVertMovement && direction.y <MinVertMovement)
     {
       direction.y = direction.y < 0 ? -MinVertMovement : MinVertMovement;
       direction.x = direction.x < 0 ? -1 + MinVertMovement : 1 - MinVertMovement;
       rbody.velocity = direction * MinSpeed;
     }

     if (speed<MinSpeed || speed>MaxSpeed)
     {
       speed = Mathf.Clamp(speed, MinSpeed, MaxSpeed);
       rbody.velocity = direction*speed;
     }
   }
   lastFrameVelocity = rbody.velocity;

 }

 void OnCollisionEnter(Collision collision)
 {

   Bounce(collision.contacts[0].normal);

 }

 private void Bounce(Vector3 collisionNormal)
 {
   var speed = lastFrameVelocity.magnitude;
   var direction = Vector3.Reflect(lastFrameVelocity.normalized, collisionNormal);
   Debug.Log("Out Direction: " + direction);
   rbody.velocity = direction * Mathf.Max(speed, minVelocity);
 }

 public void Launch()
  {
     rbody = GetComponent<Rigidbody>();

     Vector3 randomDirection = new Vector3(-5f, 10f, 0);
     randomDirection = randomDirection.normalized * MinSpeed;
     rbody.velocity = randomDirection;
     transform.parent = null;
     hasBeenLaunched = true;
   }


 }

Code for my paddle

 public class PaddleScript : MonoBehaviour
 {
 private float moveSpeed = 15f;

 void Start()
 {

 }

 void Update()
 {
     if (Input.GetKey(KeyCode.RightArrow) && transform.position.x<9.5)
       transform.Translate(moveSpeed *Input.GetAxis("Horizontal")*Time.deltaTime, 0f, 0f);
     if (Input.GetKey(KeyCode.LeftArrow) && transform.position.x>-7.5)
       transform.Translate(moveSpeed *Input.GetAxis("Horizontal")*Time.deltaTime, 0f, 0f);

 }

}