Added try catch for URL parsing

TelegramListener.cs

@@ -55,15 +55,22 @@ namespace TeleTok
             // Passes the url along to the video downloader if it is valid AND a tiktok link
             if (isUri)
             {
-                if(messageText.Contains("tiktok.com"))
+                try
                 {
-                    proxyUrl = VidDownload.TikTokURL(messageText);
+                    if(messageText.Contains("tiktok.com"))
+                    {
+                        proxyUrl = VidDownload.TikTokURL(messageText);
 
-                    Message ttVideo = await botClient.SendVideoAsync(
-                        chatId: chatId,
-                        video: proxyUrl,
-                        cancellationToken: cancellationToken
-                    );
+                        Message ttVideo = await botClient.SendVideoAsync(
+                            chatId: chatId,
+                            video: proxyUrl,
+                            cancellationToken: cancellationToken
+                        );
+                    }
+                }
+                catch 
+                {
+                    Console.WriteLine("Valid TikTok URI was sent, but was not a video!");
                 }
             }
         }