Please Can you give me a solution "Reward video of unity not showing",Please can you give me a solution "reward video of unity ads not showing"

using UnityEngine; using System.Collections;

// Unity Ads using UnityEngine.Advertisements;

public class ShopManager : MonoBehaviour { public bool clicking;

 public static ShopManager instance = null;

 void Awake()
 {
     //print("Init ShopManger");

     if (instance == null)
     {
         instance = this;
     }
     else if (instance != null)
     {
         //print("Object exist");

         //Destroy(gameObject);
     }
 }

 public void BuyButtonClick(int product)
 {
     // avoid multiple click
     if (clicking == true) return;

     clicking = true;

     StartCoroutine(ResetButtonClick());

     // charge money then add coin
     switch (product)
     {
         case 1:
             InAppManager.instance.SelectedPack = 1;
             break;
         case 2:
             InAppManager.instance.SelectedPack = 2;
             break;
         case 3:
             InAppManager.instance.SelectedPack = 3;
             break;
         case 4:
             InAppManager.instance.SelectedPack = 4;
             break;
         case 5:
             InAppManager.instance.SelectedPack = 5;
             break;
     }

     InAppManager.instance.BuyCoinPack();
 }

 public void UpdateCoinAmountLabel()
 {
     if (gameObject.GetComponent<UIShopPopupPlay>())
     {
         gameObject.GetComponent<UIShopPopupPlay>().UpdateCoinAmountLabel();

         // also update on lose popup
         var losePopup = GameObject.Find("LosePopup(Clone)");

         if (losePopup)
         {
             losePopup.GetComponent<UILosePopup>().coinText.text = GameData.instance.GetPlayerCoin().ToString();
         }
     }
     else if (GameObject.Find("MapScene"))
     {
         GameObject.Find("MapScene").GetComponent<MapScene>().UpdateCoinAmountLabel();
     }
 }

 IEnumerator ResetButtonClick()
 {
     yield return new WaitForSeconds(1f);

     clicking = false;
 }

 public void WatchVideoForCoinButtonClick()
 {
     // avoid multiple click
     if (clicking == true) return;

     clicking = true;

     StartCoroutine(ResetButtonClick());

     if (Advertisement.IsReady("rewardedVideo"))
     {
         var options = new ShowOptions { resultCallback = HandleShowResult };

         Advertisement.Show("rewardedVideo", options);
     }
     else
     {
         //Debug.Log("Unity Ads: Rewarded video is not ready.");
     }
 }

 private void HandleShowResult(ShowResult result)
 {
     switch (result)
     {
         case ShowResult.Finished:
             //Debug.Log("Unity Ads: The ad was successfully shown.");

             //plus coin
             GameData.instance.SavePlayerCoin(GameData.instance.GetPlayerCoin() + Configure.instance.watchVideoCoin);

             // play add coin sound
             AudioManager.instance.CoinAddAudio();

             // update text label
             UpdateCoinAmountLabel();

             break;
         case ShowResult.Skipped:
             //Debug.Log("Unity Ads: The ad was skipped before reaching the end.");
             break;
         case ShowResult.Failed:
             //Debug.LogError("Unity Ads: The ad failed to be shown.");
             break;
     }
 }

 public void FbLoginPlusCoin()
 {
     //print("Facebook login plus coin");

     // plus coin
     GameData.instance.SavePlayerCoin(GameData.instance.GetPlayerCoin() + Configure.instance.FBLoginCoin);

     // play add coin sound
     AudioManager.instance.CoinAddAudio();

     // update text label
     UpdateCoinAmountLabel();
 }

} ,using UnityEngine; using System.Collections;

// Unity Ads using UnityEngine.Advertisements;

public class ShopManager : MonoBehaviour { public bool clicking;

 public static ShopManager instance = null;

 void Awake()
 {
     //print("Init ShopManger");

     if (instance == null)
     {
         instance = this;
     }
     else if (instance != null)
     {
         //print("Object exist");

         //Destroy(gameObject);
     }
 }

 public void BuyButtonClick(int product)
 {
     // avoid multiple click
     if (clicking == true) return;

     clicking = true;

     StartCoroutine(ResetButtonClick());

     // charge money then add coin
     switch (product)
     {
         case 1:
             InAppManager.instance.SelectedPack = 1;
             break;
         case 2:
             InAppManager.instance.SelectedPack = 2;
             break;
         case 3:
             InAppManager.instance.SelectedPack = 3;
             break;
         case 4:
             InAppManager.instance.SelectedPack = 4;
             break;
         case 5:
             InAppManager.instance.SelectedPack = 5;
             break;
     }

     InAppManager.instance.BuyCoinPack();
 }

 public void UpdateCoinAmountLabel()
 {
     if (gameObject.GetComponent<UIShopPopupPlay>())
     {
         gameObject.GetComponent<UIShopPopupPlay>().UpdateCoinAmountLabel();

         // also update on lose popup
         var losePopup = GameObject.Find("LosePopup(Clone)");

         if (losePopup)
         {
             losePopup.GetComponent<UILosePopup>().coinText.text = GameData.instance.GetPlayerCoin().ToString();
         }
     }
     else if (GameObject.Find("MapScene"))
     {
         GameObject.Find("MapScene").GetComponent<MapScene>().UpdateCoinAmountLabel();
     }
 }

 IEnumerator ResetButtonClick()
 {
     yield return new WaitForSeconds(1f);

     clicking = false;
 }

 public void WatchVideoForCoinButtonClick()
 {
     // avoid multiple click
     if (clicking == true) return;

     clicking = true;

     StartCoroutine(ResetButtonClick());

     if (Advertisement.IsReady("rewardedVideo"))
     {
         var options = new ShowOptions { resultCallback = HandleShowResult };

         Advertisement.Show("rewardedVideo", options);
     }
     else
     {
         //Debug.Log("Unity Ads: Rewarded video is not ready.");
     }
 }

 private void HandleShowResult(ShowResult result)
 {
     switch (result)
     {
         case ShowResult.Finished:
             //Debug.Log("Unity Ads: The ad was successfully shown.");

             //plus coin
             GameData.instance.SavePlayerCoin(GameData.instance.GetPlayerCoin() + Configure.instance.watchVideoCoin);

             // play add coin sound
             AudioManager.instance.CoinAddAudio();

             // update text label
             UpdateCoinAmountLabel();

             break;
         case ShowResult.Skipped:
             //Debug.Log("Unity Ads: The ad was skipped before reaching the end.");
             break;
         case ShowResult.Failed:
             //Debug.LogError("Unity Ads: The ad failed to be shown.");
             break;
     }
 }

 public void FbLoginPlusCoin()
 {
     //print("Facebook login plus coin");

     // plus coin
     GameData.instance.SavePlayerCoin(GameData.instance.GetPlayerCoin() + Configure.instance.FBLoginCoin);

     // play add coin sound
     AudioManager.instance.CoinAddAudio();

     // update text label
     UpdateCoinAmountLabel();
 }

}