Fix onDownloadError callback when url is invalid

Signed-off-by: lzzy12 <jhashivam2020@gmail.com>

bot/helper/download_tools.py

@@ -32,7 +32,7 @@ class DownloadHelper:
             download = aria2.add_magnet(link, {'dir': DOWNLOAD_DIR + str(self.__listener.message.message_id)})
             self.__is_torrent = True
         else:
-            self.__listener.onDownloadError("No download URL or URL malformed")
+            self.__listener.onDownloadError("No download URL or URL malformed", None, None)
             return
         download_dict[self.__listener.message.message_id] = DownloadStatus(download.gid,
                                                                            self.__listener.message.message_id)

bot/mirror.py

@@ -33,11 +33,11 @@ class MirrorListener(listeners.MirrorListeners):
 
     def onDownloadError(self, error, progress_status_list: list, index: int):
         LOGGER.error(error)
-
+        if progress_status_list is not None:
+            fs_utils.clean_download(progress_status_list[index].path())
         msg = f"@{self.message.from_user.username} your download has been cancelled due to: {error}"
         sendMessage(msg, self.context, self.update)
         del download_dict[self.message.message_id]
-        fs_utils.clean_download(progress_status_list[index].path())
 
     def onUploadStarted(self, progress_status_list: list, index: int):
         pass