How did her crop feel this morning before eating or drinking anything? I would give some chilled coconut oil cut into small pieces to peck, up to 2 tsp daily. Offer some scrambled soft egg with a little water in it. Crop problems are not always fixed that easily, and can move on to gizzard problems. Does she have some poultry granite grit available in a container in the coop? Take picture of some poops. A dog crate with food and water and bedding or puppy pads can be put in your coop or run to keep her, where you can monitor food, water, and poops, and any eggs she lays.