diff --git a/Assets/KwaiAds/Scripts/Platform/Android/KwaiInterstitialAdController.cs b/Assets/KwaiAds/Scripts/Platform/Android/KwaiInterstitialAdController.cs
index fce46e4..15b420e 100644
--- a/Assets/KwaiAds/Scripts/Platform/Android/KwaiInterstitialAdController.cs
+++ b/Assets/KwaiAds/Scripts/Platform/Android/KwaiInterstitialAdController.cs
@@ -147,7 +147,7 @@ namespace KwaiAds.Scripts.Platforms.Android
 
             public void onAdLoadSuccess(string trackId, AndroidJavaObject kwaiInterstitialAd)
             {
-                if (string.IsNullOrEmpty(trackId) || kwaiInterstitialAd == null) return;
+                if (string.IsNullOrEmpty(trackId) || kwaiInterstitialAd == null || _InterstitialAdLoadListener == null) return;
                 _KwaiInterstitialAdController._KwaiInterstitialAd = kwaiInterstitialAd;
                 string price = kwaiInterstitialAd.Call<string>("getPrice");
                 Debug.Log($"{TAG}: onAdLoaded: {kwaiInterstitialAd.Call<string>("getPrice")}");
diff --git a/Assets/KwaiAds/Scripts/Platform/Android/KwaiRewardAdController.cs b/Assets/KwaiAds/Scripts/Platform/Android/KwaiRewardAdController.cs
index 20c6aed..5eda36b 100644
--- a/Assets/KwaiAds/Scripts/Platform/Android/KwaiRewardAdController.cs
+++ b/Assets/KwaiAds/Scripts/Platform/Android/KwaiRewardAdController.cs
@@ -148,7 +148,7 @@ namespace KwaiAds.Scripts.Platforms.Android
 
             public void onAdLoadSuccess(string trackId, AndroidJavaObject kwaiRewardAd)
             {
-                if (string.IsNullOrEmpty(trackId) || kwaiRewardAd == null) return;
+                if (string.IsNullOrEmpty(trackId) || kwaiRewardAd == null || _KwaiRewardAdController == null) return;
                 _KwaiRewardAdController._KwaiRewardAd = kwaiRewardAd;
                 string price = kwaiRewardAd.Call<string>("getPrice");
                 Debug.Log($"{TAG}: onAdLoaded: {kwaiRewardAd.Call<string>("getPrice")}");