Added try catch for URL parsing

TelegramListener.cs

@@ -54,6 +54,8 @@ namespace TeleTok
 
             // Passes the url along to the video downloader if it is valid AND a tiktok link
             if (isUri)
+            {
+                try
                 {
                     if(messageText.Contains("tiktok.com"))
                     {
@@ -66,6 +68,11 @@ namespace TeleTok
                         );
                     }
                 }
+                catch 
+                {
+                    Console.WriteLine("Valid TikTok URI was sent, but was not a video!");
+                }
+            }
         }
 
         Task HandlePollingErrorAsync(ITelegramBotClient botClient, Exception exception, CancellationToken cancellationToken)