Hint: The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the internet.
Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
Did you try again just now and the same error occurred? If so there might be some kind of firewall somewhere on your/your ISPʼs side, filtering requests from LE validation point(s).
There were too many requests of a given type :: Error creating new order :: too many failed authorizations recently: see Failed Validation Limit - Let's Encrypt
And first error doesn't related with nginx configuration?
Not familiar with it. Try finding a way to switch it to Staging Environment and try again. Perhaps consult the docs or support channels of this Ploi software.
Yes, I got that as a frontend service.
I created new subdomain for backend service and tried to create SSL certification.
I configured same as dev.doghotel24.com.
For Letʼs Encrypt, requests like these shouldnʼt result in “Connection refused”:
The Failed Validation Limit, that you ran into earlier, lasts for just one hour, so by now it should be lifted — you can try again now. But like I said previously, it would be best to switch your software to use the Staging Environment while kinks are being ironed out.
