Certbot: Your system is not supported by certbot-auto anymore. Certbot will no longer receive updates

How do I manually update the certificates that Certbot would normally update? I did not change anything in my system so I am assuming it is because I have CentOS 6. I also have Apache. How do I update the certificates manually? SUBJECT: Cron scl enable python27 "/root/certbot-auto renew --quiet" Your system is not supported by certbot-auto anymore. Certbot will no longer receive updates. Please visit https://certbot.eff.org/ to check for other alternatives.