To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you're using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
I am running it on a digital ocean instance with quite an old Ubuntu installation using nginx.
Okay, found an issue with the redirect. Now have the following message return at unsuccessful ./certbot-auto renew:
Domain: www.frombaltic.ru
Type: unauthorized
Detail: Invalid response from
http://www.frombaltic.ru/.well-known/acme-challenge/0Fd0cJyEAN4j3gRFwbU1nPPQfskKDo5r3EsCJltl4Q4:
"<html>
<head><title>404 Not Found</title></head>
<body bgcolor="white">
<center><h1>404 Not Found</h1></center>
<hr><center>"
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address
Hmmmmm, surprisingly, dry-run was successful, and then the actual renew with -a was successful!
Not sure what the actual problem was, but now everything is fine and works! Thank you!!!!