I will add that I remembered an old breeder and NPIP tester for our state, a guy who I've purchased hatching eggs from and consulted with over the years, once told me that tomato juice was helpful for impacted crops. I'd say the no salt variety if you can find it. It makes sense because of the acidity, going back to the lemon juice in the mixture I've used as well. If her crop is emptying and seems to be getting better, you could probably not force that stuff down her. Most chickens like tomato juice and the red color draws them to it.