Let's Debug

Test result for waternlava.duckdns.org using http-01

waternlava.duckdns.org has an A (IPv4) record ( 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 waternlava.duckdns.org/ Get "http://waternlava.duckdns.org/.well-known/acme-challenge/letsdebug-test": dial tcp i/o timeout

@0ms: Making a request to http://waternlava.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP
@0ms: Dialing
@10000ms: Experienced error: dial tcp i/o timeout
A test authorization for waternlava.duckdns.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://waternlava.duckdns.org/.well-known/acme-challenge/PR9bNO2sWQdEnCgFqbDOI5qGgxDZv4gubFd-mlqGa2g: Timeout during connect (likely firewall problem)

Submitted Jan 8 21:17:27 2021. Sat in queue for 2ms. Completed in 21s. Show verbose information.