When connecting proxy aiohttp, an error occurs, how to solve?

Question

Python

When proxy http is connected, such an error falls, without a proxy everything goes fine, the working proxy checked through reqeusts. How can you fix it?

async with aiohttp.ClientSession() as session:
        async with session.get('https://site.com', 
        proxy='http://log:[email protected]:port') as resp:
            print(resp.status)
            print(await resp.text())

File "C:\ProgramData\Anaconda3\lib\site-packages\aiohttp\connector.py", line 1093, in _create_proxy_connection
transport, proto = await self._wrap_create_connection(
File "C:\ProgramData\Anaconda3\lib\site-packages \aiohttp\connector.py", line 943, in _wrap_create_connection
raise client_error(req.connection_key, exc) from exc
aiohttp.client_exceptions.ClientConnectorError: Cannot connect to host yandex.ru:443 ssl:default [Invalid parameter]