Wow sad. Sorry for you mate. That is not cool at all...
I think (as said before) that it could be the issue of a 2,2Billion+ character.
An angel confirmed me that those 2,2Billion are the addition of : Your money + You ship + Your guns/equipment + Cargo hold.
So, if you have a CAU8 on a 550M battleship and a 250M Battleship scanner with $0, don't go over 800M with it. (You character might be corrupted otherwise)