codename2221.tk has an A (IPv4) record (68.102.180.242) 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 codename2221.tk/68.102.180.242: Get "http://codename2221.tk/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://codename2221.tk/.well-known/acme-challenge/letsdebug-test (using initial IP 68.102.180.242)
@0ms: Dialing 68.102.180.242
@10000ms: Experienced error: context deadline exceeded
A test authorization for codename2221.tk to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
68.102.180.242: Fetching http://codename2221.tk/.well-known/acme-challenge/pYLnFjJ5V9OzG2foc1eDoZUEjciPbjHsAjB0K3jTTtM: Timeout during connect (likely firewall problem)