Yeah. The problem was using an old version of Certbot (your letsencrypt) when your configuration files were generated by a new version of Certbot (/media/6TB/USBdisk2-3TB/root/letsencrypt/letsencrypt-auto).
Yeah. The problem was using an old version of Certbot (your letsencrypt) when your configuration files were generated by a new version of Certbot (/media/6TB/USBdisk2-3TB/root/letsencrypt/letsencrypt-auto).