That may have created a significant change.
This section seems to have been altered/combined:
# configuration file /etc/nginx/conf.d/vpn.ladesol-tambov.com.conf:
server {
listen 80;
server_name vpn.ladesol-tambov.com;
listen 443 ssl; # managed by Certbot
ssl_certificate /etc/letsencrypt/live/vpn.ladesol-tambov.com/fullchain.pem; # managed by Certbot
ssl_certificate_key /etc/letsencrypt/live/vpn.ladesol-tambov.com/privkey.pem; # managed by Certbot
include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
}
As it seems to be listening to port 80 and port 443.