Adding further support to @MikeMcQ observations
$ nmap -Pn -p80,443 knigi-varna.com
Starting Nmap 7.94SVN ( https://nmap.org ) at 2024-05-08 08:15 PDT
Nmap scan report for knigi-varna.com (62.176.117.86)
Host is up (0.20s latency).
rDNS record for 62.176.117.86: 62-176-117-86.btc-net.bg
PORT STATE SERVICE
80/tcp closed http
443/tcp open https
Nmap done: 1 IP address (1 host up) scanned in 1.32 seconds
See:
For the recommended way to install Certbot, please see:
(generally a good idea to remove all installed copies of Certbot before starting)