Traceback (most recent call last):

 "/usr/local/lib/python3.5/dist-packages/discord/client.py", line 275, in _run_event
yield from getattr(self, event)(*args, **kwargs)

 "/root/MusicBot/musicbot/bot.py", line 1953, in on_message
also_delete=alsodelete

 "/root/MusicBot/musicbot/bot.py", line 473, in safe_send_message
msg = await self.send_message(dest, content, tts=tts)

 "/usr/local/lib/python3.5/dist-packages/discord/client.py", line 831, in send_message
data = yield from self.http.send_message(channel_id, content, guild_id=guild_id, tts=tts)

 "/usr/local/lib/python3.5/dist-packages/discord/http.py", line 105, in request
r = yield from self.session.request(method, url, **kwargs)

 "/usr/local/lib/python3.5/dist-packages/aiohttp/client.py", line 555, in __iter__
resp = yield from self._coro

 "/usr/local/lib/python3.5/dist-packages/aiohttp/client.py", line 161, in _request
raise RuntimeError('Session is closed')RuntimeError: Session is closed
Traceback (most recent call last):


 "/usr/lib/python2.7/dist-packages/bottle.py", line 960, in wsgi

start_response(response._status_line, response.headerlist)


 "/usr/lib/python2.7/dist-packages/cherrypy/wsgiserver/wsgiserver2.py", line 2309, in start_response

"WSGI response header value %r is not of type str." % v)
TypeError: WSGI response header value u'text/plain' is not of type str.
