the same happened to me when I tried to cancel a flight that was still listed as "booked". Mind you, the flight should have taken off during the night (after the server crashed).
No new flights are entered into the system. The latest flights were booked yesterday evening around 21:30 (server time). I mean flights for the evening of the 27th. At this moment we should already see flights listed that will fly on monday morning the 28th.