vpn.ilcasco.com has an A (IPv4) record (192.190.137.82) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with vpn.ilcasco.com/192.190.137.82: Get "http://vpn.ilcasco.com/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://vpn.ilcasco.com/.well-known/acme-challenge/letsdebug-test (using initial IP 192.190.137.82)
@0ms: Dialing 192.190.137.82
@10001ms: Experienced error: context deadline exceeded
A test authorization for vpn.ilcasco.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
192.190.137.82: Fetching http://vpn.ilcasco.com/.well-known/acme-challenge/jtRLQ5Y2bHA7RhaXSBVDytHa6n9Lod4XRM8B-hcYW5c: Timeout during connect (likely firewall problem)