I've created a second virtualserver with root login and enabled SSL website option. The domain is pointed to the server and website is working fine on http. Now when I go to Server Configuration > Manage SSL Certificate and choose Lets Encrypt option, I get the following error:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator webroot, Installer None
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for gurgaonvivah.com
http-01 challenge for www.gurgaonvivah.com
Using the webroot path /home/gurgaonvivah/public_html for all unmatched domains.
Waiting for verification...
Cleaning up challenges
Unable to clean up challenge directory /home/gurgaonvivah/public_html/.well-known/acme-challenge
Failed authorization procedure. www.gurgaonvivah.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://www.gurgaonvivah.com/.well-known/acme-challenge/ITAirT1fZtKOdFBzHBSjr87o3Epr3OwTGj4v8R6eNgs: "<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p", gurgaonvivah.com (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://gurgaonvivah.com/.well-known/acme-challenge/X6MCR-jx5JQrDDrNCc5zPXhvViLQ13HAl_viRNchZc0: "<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p"
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: www.gurgaonvivah.com
Type: unauthorized
Detail: Invalid response from
http://www.gurgaonvivah.com/.well-known/acme-challenge/ITAirT1fZtKOdFBzHBSjr87o3Epr3OwTGj4v8R6eNgs:
"<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p"
Domain: gurgaonvivah.com
Type: unauthorized
Detail: Invalid response from
http://gurgaonvivah.com/.well-known/acme-challenge/X6MCR-jx5JQrDDrNCc5zPXhvViLQ13HAl_viRNchZc0:
"<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p"
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.
When I look at the file manager I see the directories have been created but there's no file in acme-challenge/ directory. What can I do to fix this problem?
It tells you the possible solution to this at the end of the error message: If you just registered a domain and also setup the vps in virtualmin this can happen, since it takes it time to connect a new domain to the internet. Depending on your registrar, your nameservers and your tld it can take up several hours, in some cases even 24 hrs.
Make sure, you entered the correct IP address for your domain and the domainname both in the DNS and your VPS are correct. If that is ok, then just wait a while and retry later.
Best