What in the actual fuck

I've been playing on PS3 a lot since I got it like for 2-3 years never leaving it but also not using it religiously. I woke up today, turned on the console with the disc inside (metal gear rising). I've been trying to get the platinum trophy. I was only 1 VR mission left to get the 1st rank & all of them cleared throphies. And guess what, no saved data, out of nowhere all of my save files have completely dissapeared. I've been leaving the discs inside for quite a while and this fucking bullshit has never happened to me. What in the actual fuck is this dogshit, god knows i won't do those stupid ass vr missions again theyre a fucking pain in the ass my godness.

WHY? Why out of all things?