Entire gallery gone

I got an error message when i was trying to save a household saying that my library was full and to make space, so i did. Then the game crashed and when i reloaded it said corrupted save data had to be deleted. Everything is gone and all the maxis stuff i deleted is back. I spent years rebuilding everything back up from the last time this happened. All the tattoes i saved are gone, i don't know if I'll be able to find them in my likes, all the sims I've created are gone, lots that i created and saved but never uploaded, but all the ugly maxis stuff is back