ERROR:asyncio:Task exception was never retrieved
future: <Task finished name='Task-9' coro=<Dispatcher._process_polling_updates() done, defined at C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\dispatcher.py:324> exception=BadRequest("Can't parse reply keyboard markup json object")>
Traceback (most recent call last):
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 332, in _process_polling_updates
    for responses in itertools.chain.from_iterable(await self.process_updates(updates, fast)):
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 188, in process_updates
    return await asyncio.gather(*tasks)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\handler.py", line 117, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 208, in process_update
    return await self.message_handlers.notify(update.message)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\dispatcher\handler.py", line 117, in notify
    response = await handler_obj.handler(*args, **partial_data)
  File "D:/Inf/python/telegramBot/testing_all.py", line 536, in send_welcome
    await message.answer("МЕНЮ", reply_markup=main_menu)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\types\message.py", line 289, in answer
    return await self.bot.send_message(chat_id=self.chat.id,
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\bot\bot.py", line 218, in send_message
    result = await self.request(api.Methods.SEND_MESSAGE, payload)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\bot\base.py", line 193, in request
    return await api.make_request(self.session, self.__token, method, data, files,
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\bot\api.py", line 104, in make_request
    return check_result(method, response.content_type, response.status, await response.text())
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\bot\api.py", line 78, in check_result
    exceptions.BadRequest.detect(description)
  File "C:\Users\79132\AppData\Local\Programs\Python\Python38-32\lib\site-packages\aiogram\utils\exceptions.py", line 137, in detect
    raise cls(description)
aiogram.utils.exceptions.BadRequest: Can't parse reply keyboard markup json object