bug in the software server

[mateusandrade98]

hello, I'm having difficulties with the software ... there is a problem when a client disconnects, displays a standard connection break message ... so far so good, but no one else was able to receive messages or send ...

Error in connection handler
Traceback (most recent call last):
  File "/home/joandeson/.local/lib/python3.6/site-packages/websockets/server.py", line 169, in handler
    yield from self.ws_handler(self, path)
  File "/home/joandeson/websocket-chat/server/server.py", line 23, in client_handler
    message = await websocket.recv()
  File "/home/joandeson/.local/lib/python3.6/site-packages/websockets/protocol.py", line 434, in recv
    yield from self.ensure_open()
  File "/home/joandeson/.local/lib/python3.6/site-packages/websockets/protocol.py", line 658, in ensure_open
    ) from self.transfer_data_exc
websockets.exceptions.ConnectionClosed: WebSocket connection is closed: code = 1001 (going away), no reason