Let's Debug

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

Error
paytibiamacros.duckdns.org has an A (IPv4) record (187.36.230.228) 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 paytibiamacros.duckdns.org/187.36.230.228: Get "http://paytibiamacros.duckdns.org/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://paytibiamacros.duckdns.org/.well-known/acme-challenge/letsdebug-test (using initial IP 187.36.230.228)
@0ms: Dialing 187.36.230.228
@10001ms: Experienced error: context deadline exceeded
A test authorization for paytibiamacros.duckdns.org to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://paytibiamacros.duckdns.org/.well-known/acme-challenge/pNyUq8dUdIxaVYnhgH5QQXP9qk0ugjXaLC4OoRZCS84: Timeout during connect (likely firewall problem)

Submitted Sep 11 01:14:56 2021. Sat in queue for 3ms. Completed in 20s. Show verbose information.