My application crashes sometimes on iOS 9 devices, and it is showing the following error.
[FATAL] [WORKLIGHT] Uncaught Exception: Keychain returned the following status: -34018 2017-01-02 12:37:19.490 FlightCrew[2944:1081505] *** Terminating app due to uncaught exception 'Unable to generate key pair.', reason: 'Keychain returned the following status: -34018'