Obtaining certificate chain for cfnlaunchpadca.49a421.c2.kafka.cn-northwest-1.amazonaws.com.cn, one moment while we download the cfnlaunchpadca.49a421.c2.kafka.cn-northwest-1.amazonaws.com.cn certificate and related intermediate certificates...

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Revocation check via OCSP and CRL for cfnlaunchpadca.49a421.c2.kafka.cn-northwest-1.amazonaws.com.cn failed

Sorry, the request for cfnlaunchpadca.49a421.c2.kafka.cn-northwest-1.amazonaws.com.cn could not be completed...

We could not load the certificate for cfnlaunchpadca.49a421.c2.kafka.cn-northwest-1.amazonaws.com.cn, it might not exist or we could not reach the server, complete the TLS handshake, etc.

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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.