UnityException: Tag: GlassCup is not defined.

Hey, i need some help with this Script. When i trigger the if keycode it tells me : UnityException: Tag: GlassCup is not defined.

public float interactDistance = 5f; public GameObject StoreItems;

     void Update ()
     {
 
         if (Input.GetKeyDown(KeyCode.E))
         {
             Ray ray = new Ray(transform.position, transform.forward);
             RaycastHit hit;
             if (Physics.Raycast(ray, out hit, interactDistance))
             {
                 if (hit.collider.CompareTag("Door"))
                 {
                     DoorScript doorScript = hit.collider.transform.parent.GetComponent<DoorScript>();
                     if (doorScript == null) return;
                     doorScript.ChangeDoorState();
                 }
 
                 if (hit.collider.CompareTag("Cornflakes"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.CornflakesPickup();
                     Destroy(hit.collider.transform.gameObject);
                     if (stealshit = null) return;
 
                 }
 
                 if (hit.collider.CompareTag("GlassCup"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.GlassCupPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Teabox"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.TeaboxPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Choclate"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.ChoclatePickUp();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("BeansAndMeat"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.BeansAndMeatPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Vegetables"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.VegetablesPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Fruits"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.FruitsPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Coffee"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.CoffeePickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("GoldenBanana"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.GoldenBananaPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Meat"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.MeatPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Cheese"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.CheesePickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Lice"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.LicePickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("TV"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.TVPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Computer"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.ComputerPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Laptop"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.LaptopPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("Toys"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.ToysPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
                 if (hit.collider.CompareTag("MobilePhones"))
                 {
                     StealShit stealshit = StoreItems.gameObject.GetComponent<StealShit>();
                     stealshit.MobilePhonesPickup();
                     Destroy(hit.collider.transform.gameObject);
 
                 }
 
             }
         }
                 
      }