Aiohttp and Asyncio give an error when writing a bot on aiogram

I'm writing a bot on Aiogram. I did everything according to the documentation, but I get an error. I'm seeing her for the first time. Please help me solve the problem

def on_startup(bot: Bot) -> None:    asyncio.create_task(start_schedule(bot))async def start_schedule(botself):    aioschedule.every().day.at('00:00').do(lottery.lottery_finish, botself)    while True:        await aioschedule.run_pending()        await asyncio.sleep(1)async def main():    bot = Bot(token=BOT_TOKEN, parse_mode='html')    dp = Dispatcher()    dp.startup.register(on_startup)    dp.include_routers(main_menu.router, order.router, report.router, phone.router, location.router, receipt_scan.router, admin_panel.router, lottery_panel.router, products_panel.router, post_panel.router, markets_panel.router, early_close_panel.router, code.router, pre_admin_panel.router, availability_panel.router)    await bot.delete_webhook(drop_pending_updates=True)    await dp.start_polling(bot)if __name__ == '__main__':    logging.basicConfig(level=logging.INFO, stream=sys.stdout)    asyncio.run(main())

error in text format:

Traceback (most recent call last):  File "C:\Users\DTEAA\PycharmProjects\chester_users2\bot.py", line 44, in <module>    asyncio.run(main())  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\runners.py", line 44, in run    return loop.run_until_complete(main)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 642, in run_until_complete    return future.result()  File "C:\Users\DTEAA\PycharmProjects\chester_users2\bot.py", line 39, in main    await dp.start_polling(bot)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\dispatcher.py", line 526, in start_polling    await self.emit_startup(bot=bots[-1], **workflow_data)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\router.py", line 230, in emit_startup    await self.startup.trigger(*args, **kwargs)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\event\event.py", line 42, in trigger    await handler.call(*args, **kwargs)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\site-packages\aiogram\dispatcher\event\handler.py", line 48, in call    return await loop.run_in_executor(None, wrapped)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\concurrent\futures\thread.py", line 52, in run    result = self.fn(*self.args, **self.kwargs)  File "C:\Users\DTEAA\PycharmProjects\chester_users2\bot.py", line 18, in on_startup    asyncio.create_task(start_schedule(bot))  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\tasks.py", line 360, in create_task    loop = events.get_running_loop()RuntimeError: no running event loopERROR:asyncio:Unclosed client sessionclient_session: <aiohttp.client.ClientSession object at 0x00000224FFE334C0>ERROR:asyncio:Unclosed connectorconnections: ['[(<aiohttp.client_proto.ResponseHandler object at 0x00000224FFE133A0>, 6128.968)]']connector: <aiohttp.connector.TCPConnector object at 0x00000224FFE33340>ERROR:asyncio:Fatal error on SSL transportprotocol: <asyncio.sslproto.SSLProtocol object at 0x00000224FFE33970>transport: <_ProactorSocketTransport fd=596 read=<_OverlappedFuture cancelled>>Traceback (most recent call last):  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 684, in _process_write_backlog    self._transport.write(chunk)  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 359, in write    self._loop_writing(data=bytes(data))  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 395, in _loop_writing    self._write_fut = self._loop._proactor.send(self._sock, data)AttributeError: 'NoneType' object has no attribute 'send'sys:1: RuntimeWarning: coroutine 'start_schedule' was never awaitedException ignored in: <function _SSLProtocolTransport.__del__ at 0x00000224EFC60D30>Traceback (most recent call last):  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 321, in __del__  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 316, in close  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 593, in _start_shutdown  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 598, in _write_appdata  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 706, in _process_write_backlog  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\sslproto.py", line 720, in _fatal_error  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\proactor_events.py", line 151, in _force_close  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 746, in call_soon  File "C:\Users\DTEAA\AppData\Local\Programs\Python\Python39\lib\asyncio\base_events.py", line 510, in _check_closedRuntimeError: Event loop is closedProcess finished with exit code 1

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