It produced this output: To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address.
This is probably a misleading error message. Misconfigured DNS could cause this result (i.e., LE is hitting the wrong machine), but a more likely issue is that you're specifying the wrong webroot path. If you create a plain text file at /var/www/html/.well-known/acme-challenge/test.txt, and then browse to http://www.couponspora.com/.well-known/acme-challenge/test.txt, you should see that text file, without needing to log in or anything else. If not, you need to do something with your webserver configuration.