Eh, it's some event with a date in 1900. This must clearly be a mistake in my calendar, but anyway erminig-ng should be able to handle this. Worse even, I can't really find the event on Google Calendar. I first tried to display the event title, so I would know which one it was, then I found it but the date was ok. In any case I removed it, but now erminig-ng still finds it and still crashes...