smilebags.duckdns.org has an A (IPv4) record (203.217.45.240) 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 smilebags.duckdns.org/203.217.45.240: Get "http://smilebags.duckdns.org/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://smilebags.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP 203.217.45.240)
@0ms: Dialing 203.217.45.240
@10000ms: Experienced error: context deadline exceeded
A test authorization for smilebags.duckdns.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
203.217.45.240: Fetching http://smilebags.duckdns.org/.well-known/acme-challenge/PsQoPj8-M36Nr6ntRxAD4Yuj_JQPEV1q08YPfZu6dtk: Timeout during connect (likely firewall problem)