Swimbot Error

Traceback (most recent call last):
  File "/home/pi/.local/lib/python3.7/site-packages/discord/ext/commands/core.py", line 85, in wrapped
    ret = await coro(*args, **kwargs)
  File "/home/pi/Swimbot/waitlist.py", line 109, in wait
    tag_list = await COC.swimbot(str(target.id)).player_list
  File "/home/pi/Swimbot/COC.py", line 189, in player_list
    async for document in accounts.find({'discord_id':self.input}):
  File "<string>", line 7, in __anext__
  File "/usr/lib/python3.7/concurrent/futures/thread.py", line 57, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/cursor.py", line 1073, in _refresh
    self.__send_message(q)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/cursor.py", line 955, in __send_message
    address=self.__address)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1347, in _run_operation_with_response
    exhaust=exhaust)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1455, in _retryable_read
    read_pref, session, address=address)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1254, in _select_server
    server = topology.select_server(server_selector)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/topology.py", line 231, in select_server
    address))
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/topology.py", line 189, in select_servers
    selector, server_timeout, address)
  File "/home/pi/.local/lib/python3.7/site-packages/pymongo/topology.py", line 205, in _select_servers_loop
    self._error_message(selector))
pymongo.errors.ServerSelectionTimeoutError: No replica set members match selector "Primary()"