Update "let's encrypt" certificate from command line

A raspberry pi 3B+ is outfitted with NextCloudPi. Duckdns was setup and runs: the certificate expired August 13, 2023. Is there a terminal command that can force certificate renewal? I did find certbot : certbot renew --force-renewal I tried: pi@nextcloudpi:~ $ sudo certbot certonly Which returned: > IMPORTANT NOTES: > - Congratulations! Your certificate and chain have been saved at: /etc/letsencrypt/live/downwind.duckdns.org/fullchain.pem Your key > file has been saved at: > /etc/letsencrypt/live/xxxxxxx.duckdns.org/privkey.pem Your cert > will expire on 2024-01-30. To obtain a new or tweaked version of > this certificate in the future, simply run certbot again. To > non-interactively renew *all* of your certificates, run "certbot > renew"