SSL: CERTIFICATE_VERIFY_FAILED about python-bittrex-websocket HOT 7 OPEN

(venv) Userss-MBP:test user$ python3 ticker_updates.py
2018-10-16 07:23:36 - bittrex_websocket.websocket_client - INFO - Establishing connection to Bittrex through https://socket.bittrex.com/signalr.
2018-10-16 07:23:36 - bittrex_websocket.websocket_client - ERROR - 
Unhandled Exception = <class 'ssl.SSLCertVerificationError'>, Message = <[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1045)>.
Auto-reconnection is disabled for unhandled exceptions.
Report to https://github.com/slazarov/python-bittrex-websocket.
2018-10-16 07:23:46 - bittrex_websocket.websocket_client - ERROR - Connection timeout after 10 seconds. Sending a reconnection signal.
Exception in thread ControlQueueThread:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 917, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py", line 865, in run
    self._target(*self._args, **self._kwargs)
  File "/Users/user/test/venv/lib/python3.7/site-packages/bittrex_websocket/websocket_client.py", line 80, in control_queue_handler
    self._handle_subscribe(event)
  File "/Users/user/test/venv/lib/python3.7/site-packages/bittrex_websocket/websocket_client.py", line 182, in _handle_subscribe
    self.invokes.append({'invoke': event.invoke, 'ticker': identify_payload(event.payload)})
AttributeError: 'CloseEvent' object has no attribute 'invoke'