幾天前，我的 discord 機器人突然離線，我通過 repl.it 托管我的機器人，但我無法讓它工作，因為它給出了一個骯臟的錯誤。Traceback (most recent call last):  File "main.py", line 584, in <module>    bot.run("NTg0NjkyODA1NTcwNjU4MzEz.XPOnmw.VpE_ILHaDdQ6k--OIBRovc1h80o")  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 640, in run    return future.result()  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 621, in runner    await self.start(*args, **kwargs)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 585, in start    await self.connect(reconnect=reconnect)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 499, in connect    await self._connect()  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/client.py", line 463, in _connect    await self.ws.poll_event()  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/gateway.py", line 471, in poll_event    await self.received_message(msg)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/gateway.py", line 425, in received_message    func(data)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/state.py", line 750, in parse_guild_create    guild = self._get_create_guild(data)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/state.py", line 725, in _get_create_guild    guild._from_data(data)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/guild.py", line 297, in _from_data    self._sync(guild)  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/discord/guild.py", line 328, in _sync    self._add_channel(CategoryChannel(guild=self, data=c, state=self._state))這是在控制臺中，我不知道這是什么意思。我們沒有更改任何代碼，它只是離線并停止工作。