elistovnik.uni-lj.si has an A (IPv4) record (212.235.185.111) 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 elistovnik.uni-lj.si/212.235.185.111: Get http://elistovnik.uni-lj.si/.well-known/acme-challenge/letsdebug-test: context deadline exceeded
Trace:
@0ms: Making a request to http://elistovnik.uni-lj.si/.well-known/acme-challenge/letsdebug-test (using initial IP 212.235.185.111)
@0ms: Dialing 212.235.185.111
@10000ms: Experienced error: context deadline exceeded
A test authorization for elistovnik.uni-lj.si to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://elistovnik.uni-lj.si/.well-known/acme-challenge/lHpyHbjAyVVU_B8drRfIhXctY0ypgkGSfbH91WIXsQY: Timeout during connect (likely firewall problem)