Obtaining certificate chain for upcommons.upc.edu, one moment while we download the upcommons.upc.edu certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for upcommons.upc.edu, one moment while we re-check the upcommons.upc.edu certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for upcommons.upc.edu failed
Sorry, the request for upcommons.upc.edu could not be completed...
We could not load the certificate for upcommons.upc.edu, 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.