I'm pretty sure it's not an impacted crop. It isn't hard. Depending on what she's eaten, it varies from soft squidgy to dough squidgy.It's a bit tricky when you have several possible crop disorders going on. The dilemma is what to decide to treat first. I agree with @Wyorp Rock to treat for impacted crop first to try to open things up and get them moving. That will help when you finally are able to treat for yeast.
This seems logical to me if you consider which is more likely to kill the chicken first, impacted digestive tract or yeast.
Food and liquids are moving through her. She's pooped maybe a dozen times today.
I broke all the lockdown rules and went to the nearest town and bought live yogurt. She's had 100 ml and late this afternoon her poop had white urates showing and was more solid. Just not enough of it.
I'm begining to think there may be a gizzard problem.