If you can't take her to a vet for diagnosis, you may need to think about humanely euthanizing her. If you can't do it yourself, a vet should be able to do it for you. There is clearly something wrong if she's not able to stand. What kind of a life would that be for her? I still suspect that she ended up frozen to the ground because she couldn't stand in the first place - she probably fell and couldn't get back up.