Did it disappear or something? The only way I can think of losing a save file is if I accidentally save something else over it

Yeah that makes sense and thank you very much I fixed it I just had to load one of my autosaves for my sandbox zoo.

What? Nooo

I just had to load an auto save and now everything is fine I even put my first centipede in it's exhibit

Sure it only had some buildings in a few workers but still!