Why dosnt she like her litter box?
Get Natures Miracle to clean up the messes. Even if you wipe it off, cats can still smell their own urine and that keeps them peeing in that same spot, no matter what you might try, you need a cleaning product thats going to break down the urine entirely. Trust me. Pet co or Pet smart will have it. Its a lifesaver!
Is something making your cat nervous/stressed * new dog, new cat, bird? furniture change*? are you scooping the box EVERY day? ( I personally use fresh step scoopable for my two cats) they share one box that we clean every day. Keeps the litter from being used as fast, and keeps it smelling fresh. If cats dont feel comfortable using their box, be it smell ( get a new box? is it a new box and has no smell? that might be a problem too?) area the box is in, privacy, covered, not covered.... makes all the difference in them using the box. Is this an outdoor/indoor cat that is now stuck inside maybe? Consider all the factors and do a little google research, youll be surprised at what you find out! Does your cat prefer to pee in one, poo in another? Sometimes they like two boxes!
How deep is the litter? Does your cat prefer it deeper? shallower?
Maybe you need to try a different kind of litter all together? Feline Pine is another good one, that many prefer over clay litter. May be an option?
Good luck, i hope i helped a little in the process of figuring this issue out.