When run commands:
me@server$ sudo certbot update_symlinks
Saving debug log to /var/log/letsencrypt/letsencrypt.log
renewal config file {} is missing a required file reference
me@server$ sudo certbot install --cert-name mydomain
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Certbot doesn't know how to automatically configure the web server on this system. However, it can still get a certificate for you. Please run "certbot certonly" to do so. You'll need to manually configure your web server to use the resulting certificate.
me@server$
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