websocket._exceptions.WebSocketConnectionClosedException: Connection is already closed.

[1232154pp4749687]

Hi, i'm having this error after trying to connect through QR code.

[test] ('<41848>',)
[test] ("Initialized with: './sessions/test.json'",)
[test] ('Starting to ping in 15 seconds!',)
[test] ('Started pinging',)
[test] ('Listening on port: ', 41848)
Exception in thread Thread-2:
Traceback (most recent call last):
File "C:\Program Files\Python38\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Program Files\Python38\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "./main.py", line 54, in ping_keep_alive
if not self.send_message("", opcode=websocket.ABNF.OPCODE_PING):
File "./main.py", line 69, in send_message
self.ws.send(message, opcode)
File "C:\Program Files\Python38\lib\site-packages\websocket_app.py", line 190, in send
raise WebSocketConnectionClosedException(
websocket._exceptions.WebSocketConnectionClosedException: Connection is already closed.