jobs.ltt.ly has an A (IPv4) record (62.240.32.177) 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 jobs.ltt.ly/62.240.32.177: Get "http://jobs.ltt.ly/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://jobs.ltt.ly/.well-known/acme-challenge/letsdebug-test (using initial IP 62.240.32.177)
@0ms: Dialing 62.240.32.177
@10000ms: Experienced error: context deadline exceeded
A test authorization for jobs.ltt.ly to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
62.240.32.177: Fetching http://jobs.ltt.ly/.well-known/acme-challenge/Mn4ttm5lEOcE2kpKTxcPqtmj1CTxQoIamd4l8abNCz4: Timeout during connect (likely firewall problem)