demo.lomin.ai has an A (IPv4) record (147.46.238.11) but a request to this address over port 80 did not succeed.
A timeout was experienced while communicating with demo.lomin.ai/147.46.238.11: Get http://demo.lomin.ai/.well-known/acme-challenge/letsdebug-test: dial tcp 147.46.238.11:80: i/o timeout
Trace:
@0ms: Making a request to http://demo.lomin.ai/.well-known/acme-challenge/letsdebug-test (using initial IP 147.46.238.11)
@0ms: Dialing 147.46.238.11
@10002ms: Experienced error: dial tcp 147.46.238.11:80: i/o timeout
A test authorization for demo.lomin.ai to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://demo.lomin.ai/.well-known/acme-challenge/TbtYIPv0U2dZ1KdvXuUbk2Ua2UE7fpTOuhHNIWORfw4: Timeout during connect (likely firewall problem)