test.h43.ru has an A (IPv4) record (46.255.97.130) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with test.h43.ru/46.255.97.130: Get "http://test.h43.ru/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://test.h43.ru/.well-known/acme-challenge/letsdebug-test (using initial IP 46.255.97.130)
@0ms: Dialing 46.255.97.130
@10000ms: Experienced error: context deadline exceeded
A test authorization for test.h43.ru to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
There may be internal issues on the staging service: Error retrieving account "https://acme-staging-v02.api.letsencrypt.org/acme/acct/5751349"