lendercore.rupeek.co has an A (IPv4) record (15.206.120.231) 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.
Get "http://lendercore.rupeek.co/.well-known/acme-challenge/letsdebug-test": dial tcp 15.206.120.231:80: connect: connection refused
Trace:
@0ms: Making a request to http://lendercore.rupeek.co/.well-known/acme-challenge/letsdebug-test (using initial IP 15.206.120.231)
@0ms: Dialing 15.206.120.231
@205ms: Experienced error: dial tcp 15.206.120.231:80: connect: connection refused
A test authorization for lendercore.rupeek.co to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
15.206.120.231: Fetching http://lendercore.rupeek.co/.well-known/acme-challenge/7zWQtEP3mX32M-nz-3bQCS2VNCB3cIsksQ1B0qH7t-I: Connection refused