asyncio.run(main()) has error, how to resolve ?

[bobogavin]

Unhandled error while receiving data
Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\runners.py", line 43, in run
return loop.run_until_complete(main)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\base_events.py", line 574, in run_until_complete
self.run_forever()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\base_events.py", line 541, in run_forever
self._run_once()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\base_events.py", line 1786, in _run_once
handle._run()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\events.py", line 88, in _run
self._context.run(self._callback, *self._args)
File ".\TdataToSession.py", line 49, in main
exit(0)
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib_sitebuiltins.py", line 26, in call
raise SystemExit(code)
SystemExit: 0

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\telethon\network\mtprotosender.py", line 505, in _recv_loop
body = await self._connection.recv()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\site-packages\telethon\network\connection\connection.py", line 299, in recv
result, err = await self._recv_queue.get()
File "C:\Users\Administrator\AppData\Local\Programs\Python\Python37\lib\asyncio\queues.py", line 159, in get
await getter
concurrent.futures._base.CancelledError