Sending an ACME HTTP validation request to coffebuisness.shop results in unexpected HTTP response 503 Service Temporarily Unavailable. This indicates that the webserver is misconfigured or misbehaving.
503 Service Temporarily Unavailable
<html>
<head><title>503 Service Temporarily Unavailable</title></head>
<body>
<center><h1>503 Service Temporarily Unavailable</h1></center>
<hr><center>nginx</center>
</body>
</html>
Trace:
@0ms: Making a request to http://coffebuisness.shop/.well-known/acme-challenge/letsdebug-test (using initial IP 89.47.249.4)
@0ms: Dialing 89.47.249.4
@89ms: Server response: HTTP 503 Service Temporarily Unavailable