Obtaining certificate chain for claroline.kalo.org, one moment while we download the claroline.kalo.org certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for claroline.kalo.org, one moment while we re-check the claroline.kalo.org certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for claroline.kalo.org failed
Sorry, the request for claroline.kalo.org could not be completed...
We could not load the certificate for claroline.kalo.org, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.