Let's Debug

Test result for mail.topperfloats.com using http-01

mail.topperfloats.com has an AAAA (IPv6) record (2607:f650:0:1::10) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
A timeout was experienced while communicating with mail.topperfloats.com/2607:f650:0:1::10: Get "http://mail.topperfloats.com/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://mail.topperfloats.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2607:f650:0:1::10)
@0ms: Dialing 2607:f650:0:1::10
@10000ms: Experienced error: context deadline exceeded
Error
mail.topperfloats.com has an A (IPv4) record (74.85.224.14) 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 mail.topperfloats.com/74.85.224.14: Get "http://mail.topperfloats.com/.well-known/acme-challenge/letsdebug-test": context deadline exceeded

Trace:
@0ms: Making a request to http://mail.topperfloats.com/.well-known/acme-challenge/letsdebug-test (using initial IP 74.85.224.14)
@0ms: Dialing 74.85.224.14
@10000ms: Experienced error: context deadline exceeded
A test authorization for mail.topperfloats.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://mail.topperfloats.com/.well-known/acme-challenge/FGWbcsHZwrHSUyaCjTJpmCFm_fBWAdoS27furWpWnN0: Timeout during connect (likely firewall problem)

Submitted Mar 8 21:10:46 2021. Sat in queue for 2ms. Completed in 24s. Show verbose information.