nasdoury.ovh has an A (IPv4) record (51.254.130.252) 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 nasdoury.ovh/51.254.130.252: Get http://nasdoury.ovh/.well-known/acme-challenge/letsdebug-test: context deadline exceeded
Trace:
@0ms: Making a request to http://nasdoury.ovh/.well-known/acme-challenge/letsdebug-test (using initial IP 51.254.130.252)
@0ms: Dialing 51.254.130.252
@10000ms: Experienced error: context deadline exceeded
A test authorization for nasdoury.ovh to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://nasdoury.ovh/.well-known/acme-challenge/qsOEkzug6b4GnkJ8aMpkgq9QP-wUVP6rUFQRC1-8Su0: Timeout during connect (likely firewall problem)