Is this a known issue?
Renewal worked in the past for existing sites.
… request failed : Web-based validation failed :
usage:
certbot [SUBCOMMAND] [options] [-d domain] [-d domain] …
Certbot can obtain and install HTTPS/TLS/SSL certificates. By default,
it will attempt to use a webserver both for obtaining and installing the
cert. Major SUBCOMMANDS are:
(default) run Obtain & install a cert in your current webserver
certonly Obtain cert, but do not install it (aka “auth”)
install Install a previously obtained cert in a server
renew Renew previously obtained certs that are near expiry
revoke Revoke a previously obtained certificate
register Perform tasks related to registering with the CA
rollback Rollback server configuration changes made during install
config_changes Show changes made to server config during installation
plugins Display information about installed plugins
letsencrypt: error: unrecognized arguments: --cert-name <redacted_domain>
Webmin version 1.921
Usermin version 1.771
Virtualmin version 6.07
Operating system CentOS Linux 7.6.1810