Obtaining certificate chain for addupproject.org, one moment while we download the addupproject.org certificate and related intermediate certificates...
Revocation check via OCSP and CRL for addupproject.org failed
Sorry, the request for addupproject.org could not be completed...
We could not load the certificate for addupproject.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.