www.ellisaircraft.com has an AAAA (IPv6) record (2607:f8b0:4006:822::2013) 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.
Get "http://68.42.15.212": No AAAA or A records were found for 68.42.15.212
Trace:
@0ms: Making a request to http://www.ellisaircraft.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2607:f8b0:4006:822::2013)
@0ms: Dialing 2607:f8b0:4006:822::2013
@26ms: Server response: HTTP 302 Found
@26ms: Received redirect to http://68.42.15.212
@231ms: Experienced error: No AAAA or A records were found for 68.42.15.212
www.ellisaircraft.com has an A (IPv4) record (142.251.40.211) 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.
Get "http://68.42.15.212": No AAAA or A records were found for 68.42.15.212
Trace:
@0ms: Making a request to http://www.ellisaircraft.com/.well-known/acme-challenge/letsdebug-test (using initial IP 142.251.40.211)
@0ms: Dialing 142.251.40.211
@27ms: Server response: HTTP 302 Found
@28ms: Received redirect to http://68.42.15.212
@28ms: Experienced error: No AAAA or A records were found for 68.42.15.212
A test authorization for www.ellisaircraft.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
2607:f8b0:4025:815::2013: Fetching http://68.42.15.212: Invalid host in redirect target "68.42.15.212". Only domain names are supported, not IP addresses