Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is: pag-crowd.nangasystems.com
I ran this command:
certbot certonly --dry-run --non-interactive --agree-tos --no-self-upgrade --email some@email --webroot --webroot-path /var/www/html -d pag-crowd.nangasystems.com
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Starting new HTTPS connection (1): acme-staging-v02.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for pag-crowd.nangasystems.com
Using the webroot path /var/www/html for all unmatched domains.
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. pag-crowd.nangasystems.com (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://pag-crowd.nangasystems.com/.well-known/acme-challenge/YUp_NeghLzcJfyYS0-Bd6901rWr58GA8Fwbqm0qQDFs: "
404 Not Found
The following errors were reported by the server:
Domain: pag-crowd.nangasystems.com404 Not Found
Detail: Invalid response from
404 Not Found
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.
My web server is (include version): Apache/2.4.18
The operating system my web server runs on is (include version):
PRETTY_NAME=“Ubuntu 16.04.3 LTS”
My hosting provider, if applicable, is: AWS
I can login to a root shell on my machine (yes or no, or I don’t know): yep
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):
Guys, it’s very strange! the response that has "