handshake error

[raina99]

Processing...

Handshake error: Status code not 101: 403
Task exception was never retrieved
future: <Task finished coro=<SpeechClient.send_audio_msg() done, defined at client.py:145> exception=AttributeError("'NoneType' object has no attribute 'send'",)>
Traceback (most recent call last):
File "client.py", line 171, in send_audio_msg
await self.ws.send(msg)
AttributeError: 'NoneType' object has no attribute 'send'
Task exception was never retrieved
future: <Task finished coro=<SpeechClient.process_response() done, defined at client.py:206> exception=AttributeError("'NoneType' object has no attribute 'recv'",)>
Traceback (most recent call last):
File "client.py", line 209, in process_response
response = await self.ws.recv()
AttributeError: 'NoneType' object has no attribute 'recv'

Sorry, we were unable to recognize the utterance.

Traceback (most recent call last):
File "client.py", line 401, in
main()
File "client.py", line 360, in main
loop.run_until_complete(client.disconnect())
File "/home/jatinpal/anaconda3/lib/python3.6/asyncio/base_events.py", line 467, in run_until_complete
return future.result()
File "client.py", line 96, in disconnect
await self.ws.close()
AttributeError: 'NoneType' object has no attribute 'close'

any input from the creator where it is getting wrong