On the linoleum tile of my floor, there is a mysterious red-pink stain, and I have no idea what it is. I tried hairspray on the stain, as well as Mr. Clean Magic Eraser, Lysol, and even vinegar.

Is there anything else I should be trying? The stain isn’t my fault, as it was there when I moved in, but, I don’t want to get pegged for it when I move out.
It’s white linoleum.