I got the same error tonight and cannot start a ride now.
Very sorry you encountered this error. Have you tried downloading the latest Zwift Launcher software from zwift.com? That might fix your error. If it does not, please open a support ticket and we can further investigate what is going on.
I just got same error. Am looking for latest version of Zwift Launcher software now at zwift.com.
actually - my s/w update failed with error Z114 at line 484