Sometimes they can get egg bound with a shell-less egg, and that could be the case. Does she seem worn out or lethargic from all of this? Is she drinking fluids? Have you repeated the calcium today? Can you try to find the vent opening, and insert a lubricated finger inside? I am not a vet, but...
I saw your video just now. I really hope that you can get the egg out, or see a vet soon. Nchlhs had a good suggestion of placing her on a warm moist towel in a warm room. Trying to massage the egg out through the opening, if you can find it might help.
Do you have any pictures of her vent? Have you repeated the calcium with vitamin D, and how many mg of calcium is there in your powder. Most calcium tablets are about 600 mg and that is what I would give. Being egg bound with a prolapse is a very serious problem. She could die of this. I would...