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: api.asiainspection.cn
I ran this command: certbot --nginx
It produced this output:
Obtaining a new certificate
Performing the following challenges:
tls-sni-01 challenge for api.asiainspection.cn
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. api.asiainspection.cn (tls-sni-01): urn:ietf:params:acme:error:unenge. Requested d66b1ea63d3cc1957931e74b721fb592.de8636590e46d47a65e9e8055a6d98da.acme.invalid fr
The following errors were reported by the server:
Detail: Incorrect validation certificate for tls-sni-01 challenge.
from 188.8.131.52:443. Received 2 certificate(s), first certificate
had names “api.asiainspection.cn”
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): nginx/1.10.3 (Ubuntu)
The operating system my web server runs on is (include version): Ubuntu
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know): yes
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):
I deleted some file in /etc/letsencrypt and restore them from the backup.