test-1.valk.sh has an A (IPv4) record (65.100.136.229) 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://test-1.valk.sh/.well-known/acme-challenge/letsdebug-test": dial tcp 65.100.136.229:80: connect: no route to host
Trace:
@0ms: Making a request to http://test-1.valk.sh/.well-known/acme-challenge/letsdebug-test (using initial IP 65.100.136.229)
@0ms: Dialing 65.100.136.229
@3075ms: Experienced error: dial tcp 65.100.136.229:80: connect: no route to host
A test authorization for test-1.valk.sh to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://test-1.valk.sh/.well-known/acme-challenge/mU7tG56TTemczbxX5ftPPYTBGk2haTwRZ8SO_36RvEc: Error getting validation data