Oracle® Database 11g / 12c / 18c error codes NZE-29115: Cannot export private key.
NZE-29115: Cannot export private key.
Oracle Error Code: NZE-29115
Cause: The private key could not be exported. Either the application ran out of memory or the key type is not valid.
Action: Enable Oracle Net tracing and attempt the connection again. Contact Oracle customer support with the trace output.