Let's Debug

Test result for hrservice.target-tec.net using http-01

Error
hrservice.target-tec.net has an A (IPv4) record (102.98.242.249) 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://hrservice.target-tec.net/.well-known/acme-challenge/letsdebug-test: dial tcp 102.98.242.249:80: connect: no route to host

Trace:
@0ms: Making a request to http://hrservice.target-tec.net/.well-known/acme-challenge/letsdebug-test (using initial IP 102.98.242.249)
@0ms: Dialing 102.98.242.249
@1730ms: Experienced error: dial tcp 102.98.242.249:80: connect: no route to host
A test authorization for hrservice.target-tec.net to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://hrservice.target-tec.net/.well-known/acme-challenge/9mO4zCaJBQxKR9dugwQRN94Zc2whXmo7_nAosYqinLg: Error getting validation data

Submitted Mar 11 01:48:15 2019. Sat in queue for 2ms. Completed in 11s. Show verbose information.