Crop issues are usually a cause of an underlying condition as mentioned in the article I linked for you. Cocci, worms and internal laying/reproductive disorders can cause inflammation and slow the moment of foods resulting in sour crop. Taking a fecal sample to your vet for testing of cocci...
Was it actually poop that ran out of her mouth or was it a foul/sour/yeasty liquid - she more than likely has sour crop.
What is a water enema? Can you tell us how you did this?
I recommend that you read the article I have linked in it's entirety, it give good information on how to treat...
If she is having liquid/water run back out her beak, then she most likely has a crop issue. Check her crop when she is roosting then first thing in the morning before she has had anything to eat/drink. It should be full at night/empty in the morning.
Crop issues are usually cause by an...
Hi Welcome To BYC
More info would be helpful-
Can you post some photos?
How old is she?
When was the last time she laid an egg?
Is she able to eat/drink?
Can you take her to a vet?
If she hasn't been eating/drinking, then see if you can get her hydrated - offer her some poultry vitamins in...