How to fix error in socket.getaddrinfo()?

Question

Python

I get an error when I want to get ip from a domain

import socket

ip_new = socket.getaddrinfo(address, port)[0][4][0]

Mistake:

for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -2] Name or service not known

The domain has an ip and the error occurs after 3-4 hours of the script, if you restart everything is fine again
socket.gethostbyname() also gives the same error