[ios] Game crashes during startup

I closed the app during the middle of a flight, and the next time I opened the app, it showed the keep flight message. I chose to delete the flight, and opened the editor to start a new flight. The new flight loaded, but then immediately crashed. I then retried the same thing (it again showed me the keep flight message), but it crashed while loading the editor. From then on, starting the app would crash right on the loading screen after the jundroo logo.