DeltaDNAAds.InterstitialAd.OnInterstitialAdFailedToOpenHandler C# (CSharp) Method

        private void OnInterstitialAdFailedToOpenHandler(string reason)
        {
            DDNASmartAds.Instance.OnInterstitialAdOpened -= this.OnInterstitialAdOpenedHandler;
            DDNASmartAds.Instance.OnInterstitialAdFailedToOpen -= this.OnInterstitialAdFailedToOpenHandler;
            DDNASmartAds.Instance.OnInterstitialAdClosed -= this.OnInterstitialAdClosedHandler;

            if (this.OnInterstitialAdFailedToOpen != null) {
                this.OnInterstitialAdFailedToOpen(reason);
            }
        }