Where did you get her from? How old/big is she? Could she be impacted? When she ate the one time, was the stool solid or runny?
Does she was water available at all times? Calcium? What are the temps in her enclosure (warm side/cool side)? Have you had a fecal done? What substrate is she on?
To get some nutrition in her and enough stool for a fecal if necc., I suggest making a mix of
1 tsp turkey baby food
1/3 tsp peach/orange/papaya juice
pinch calcium
small pinch herp vitamins
8-10 drops flax seed oil
Put in a 1cc oral syringe and squeeze a small amt onto the tip of her mose and see if she licks off. When she starts licking, gently squueze mixture from syringe to keep up with her licking. Do not insert syringe into mouth to force feed, let her take what she wants.