Failed get get previous chunk

[Nux-xader]

I tried publish livestream using some android app livestream camera publisher just for testing,
And i getting this error

Traceback (most recent call last):
File "C:\Users\satri\Documents\tcp_udp\env\Lib\site-packages\pyrtmp\rtmp.py", line 83, in client_callback
async for chunk in session.read_chunks_from_stream():
File "C:\Users\satri\Documents\tcp_udp\env\Lib\site-packages\pyrtmp\session_manager.py", line 64, in read_chunks_from_stream
raw_chunk = await self.read_raw_chunk()
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\satri\Documents\tcp_udp\env\Lib\site-packages\pyrtmp\session_manager.py", line 128, in read_raw_chunk
previous_chunk = self.get_previous_chunk(cs_id)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\satri\Documents\tcp_udp\env\Lib\site-packages\pyrtmp\session_manager.py", line 41, in get_previous_chunk
return self.latest_chunks[str(chunk_id)]
~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
KeyError: '40'