Source: Novell Certificate Server
Explanation: A certificate is no longer valid because it has expired.
Possible Cause: The Organizational Certificate Authority's certificate has expired.
Action: If the Organizational Certificate Authority's certificate has expired, delete the Organizational Certificate Authority object and create a new one.
WARNING: Use care when deleting the Organizational Certificate Authority. After the Organizational Certificate Authority object is deleted, all User and Server Certificates signed by the Certificate Authority will cease to be valid and should be deleted. After the new Organizational Certificate Authority has been created, certificates for user and servers can be re-created as needed.
WARNING: Use care when deleting User Certificates. Deleting a User Certificate also deletes the user's private key. Without the private key, data encrypted using the public key in the certificate (for example, e-mail) cannot be decrypted.
Possible Cause: The current time on the client workstation is not correct.
Action: Reset the time on the client workstation and retry the operation.
Possible Cause: The current time on the server is not correct or has not been synchronized.
Action: Set or synchronize the time on the server.
Possible Cause: An internal error occurred.
Action: Complete one or more of the following solutions in the order listed until the error is resolved: