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/oaZ2PUw5ajg4TU8dwODo__EpOMCsNxTw2ez3eSTmXyU: Timeout during connect (likely firewall problem)
onlyoffice.lechambon.fr is currently affected by Let's Encrypt-based rate limits (https://letsencrypt.org/docs/rate-limits/). You may review certificates that have already been issued by visiting https://crt.sh/?q=%lechambon.fr . Please note that it is not possible to ask for a rate limit to be manually cleared.
The Duplicate Certificate limit (5 certificates with the exact same set of domains per week) has been exceeded and is affecting the domain "onlyoffice.lechambon.fr". The exact set of domains affected is: "onlyoffice.lechambon.fr". It may be possible to avoid this rate limit by issuing a certificate with an additional or different domain name.