onlyoffice.lechambon.fr has an A (IPv4) record (93.95.236.254) 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 onlyoffice.lechambon.fr/93.95.236.254: Get "http://onlyoffice.lechambon.fr/.well-known/acme-challenge/letsdebug-test": context deadline exceeded
Trace:
@0ms: Making a request to http://onlyoffice.lechambon.fr/.well-known/acme-challenge/letsdebug-test (using initial IP 93.95.236.254)
@0ms: Dialing 93.95.236.254
@10000ms: Experienced error: context deadline exceeded
A test authorization for onlyoffice.lechambon.fr to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
93.95.236.254: Fetching http://onlyoffice.lechambon.fr/.well-known/acme-challenge/b1llpz5xd0_l2QFKvJUPDNvl8-Mtwai9Sbk5HYbpBZE: Timeout during connect (likely firewall problem)