KIRBY I KNOW EXACTLY WHATS GOING ON. One of the mods/ applications on your computer use the SAME STORAGE. There is no other way that it would be invalid. This happens when memory gets corrupt to the point of computer-killing, someone WIPES the computer, and you bought it. Otherwise, one of the applications on your computer is malware/venomware.
On a lighter note, it could also be that the game says: "Woah woah. what the
. what the hell. what chu do to me? the
you put inside me R-A-P-E stahp. whatever this is is going to go to hell. WOAH GOD WHATTHE
OKAYWHATIDOWHATHAPPEN" which means that the game has no idea what one of the corrupt files are doing there, and as they dont do anything, to terminate them. this in cause, if it is a "core" file, will make the game terminate itself and its processes. as the game is corrupt, this wont happen and it will cease to exist on your computer unless you will it back