Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
It produced this output:
Attempting to renew cert from /etc/letsencrypt/renewal/4points.cl.conf produced an unexpected error: Problem in /etc/nginx/sites-enabled/default: tried to insert directive “[‘ssl_certificate’, ‘/var/lib/letsencrypt/snakeoil/0057_cert.pem’]” but found conflicting “[‘ssl_certificate’, ‘/etc/letsencrypt/live/4points.cl/fullchain.pem’]”… Skipping.
My web server is (include version): NGINX
The operating system my web server runs on is (include version): Ubuntu 14.04
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel): no
I don’t believe you should be using --dry-run here. It is attempting to reconfigure your Nginx, but is worried about clobbering existing (functional) configs. You can force it to update this, but it will break your configuration by applying an invalid certificate. What happens if you execute this against the live environment?
That all looks about right. How about /etc/letsencrypt/cli.ini? I recall that there was an issue where that could get stuck in staging in certain circumstances.
sudo certbot renew
[sudo] password for ubuntu:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Processing /etc/letsencrypt/renewal/hkbo.site.conf
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Cert is due for renewal, auto-renewing...
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for hkbo.site
tls-sni-01 challenge for www.hkbo.site
Cleaning up challenges
Attempting to renew cert from /etc/letsencrypt/renewal/hkbo.site.conf produced an unexpected error: Problem in /etc/nginx/sites-enabled/default: tried to insert directive "['ssl_certificate', '/var/lib/letsencrypt/snakeoil/0065_cert.pem']" but found conflicting "['ssl_certificate', '/etc/letsencrypt/live/hkbo.site/fullchain.pem']".. Skipping.
All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/hkbo.site/fullchain.pem (failure)
1 renew failure(s), 0 parse failure(s)