The crop should be empty in the morning, so if you aren't feeling anything that's good.
She still isn't doing to well though is she?
Has she laid any eggs?
Have you tried any treatment (worming, treating for coccidiosis, offering poultry vitamins, etc.)?
You may find this helpful for your photos
https://www.backyardchickens.com/threads/%E2%9D%85-posting-pictures-using-the-upload-a-file-button-%E2%9D%85.1212519/
Is she able to eat/drink by herself at all?
You mention you tried to clear her crop, is it empty in the mornings before she's had anything to eat/drink?
If she's not being picked on, then I would leave her with the flock, usually they are more comfortable that way.
Getting some photos of what she and the poop looks like may be helpful...
I'm sorry that your hen is not well.
Do you know when she last laid an egg? You may want to feel inside the vent to see if she's having trouble expelling an egg.
If you have photos of her and her poop those may be helpful as well.