/root/.acme.sh/acme.sh --issue -d yourdomain.com --cert-file /etc/letsencrypt/live/yourdomain.com/cert.pem --key-file /etc/letsencrypt/live/yourdomain.com/privkey.pem --fullchain-file /etc/letsencrypt/live/yourdomain.com/fullchain.pem -w /home/yourdomain.com/public_html --force --debug