Quad does not restart position

I have a problem I am not sure how to resolve. I have a Quad with a very long image and a script that makes this whole thing into a scrolling background. The problem is that when my player dies and I restart the game, the quad does not start from the beginning of the image, but rather continue from the point of death. After a few deaths, my player spawns on an empty background, because the Quad image has long finished. I tried destroying it on player death, and it did get destroyed, but after a restart, it still remembered the last position the Quad reached. Any ideas how I can resolve this?

The scrolling code:

 public class BG : MonoBehaviour {
 
     float timer = 0;
     bool timerReached = false;
     const float TIMER_TIME = 45f;
     public float speed;
 
     // Use this for initialization
     void Start () {
     }
     
 
     // Update is called once per frame
     void Update () {
         {
             if (!timerReached)
             {
                 timer += Time.deltaTime;
 
                 Vector2 offset = new Vector2(0, Time.time * speed);
                 GetComponent<Renderer>().material.mainTextureOffset = offset;
             }
 
 
             if (!timerReached && timer > TIMER_TIME)
             {
 
                 timerReached = true;
             }
      
       
         }
 
 
     }
 }