From the Game's Description:
Everything was going fine. And then something happened. But you are not certain what, however, it resulted in the computer memory being completely erased, and the backup discs are missing. Somehow, the core systems are back up, but all personnel data is missing. As are the spares and supplies rosters.
And the computer now has an AI. No one is certain how or why.
And that's because it happened before you woke up, and no one awake ever found out.
You aren't certain, either, that the computer is sane.