For Coccidiosis treat with Corid. Dosage is 1 1/2 teaspoons Corid powder or 2 teaspoons of 9.6% Corid liquid per gallon of water. Give for 5-7 days as the sole source of drinking water.
Crop issues can be a symptom of an underlying condition like infection, worms, coccidiosis and reproductive disorders. If you have a Coccidiosis overload, then it's possible that it's slowing down the digestive process.
Treat with the Corid. I would also make sure she's drinking well, massage the crop several times a day to break up anything that is in there. You can give her 1tsp of coconut oil to help get things moving too. A source of grit (crushed granite) should be available free choice. Let her eat and see how the crop feels in the morning.