mine did something similar.. it was off her head, and bottom of her body only stuck on the top.. i had the humidity up, was spraying the side of the tank twice a day and after a week of her not getting it off, lastnight i took a warm wash cloth and gently rubbed it off, no problem at all and it came off rather easy. but i wouldnt "force" it off if that makes sense.. give it some time and up the humidity and see what happens first.