There is a lot of yellow mucus and orange material that makes you think that she could be dealing with a reproductive disorder or if she is very run down, possibly, coccidiosis. I would keep her and her mate separated from your others in quarantine for 30 days, to make sure they are not sick. Is her tail position down or up? Does she have any enlargement to her lower belly between her legs, and does she seem to have lost weight in her breast muscles? Did you get an age? Many hens may suffer resporductive disorders such as egg yolk peritonitis, salpingitis and cancer. I would observe her, possible worm her with Valbazen or SafeGuard Liquid Goat Wormer, make sure that she is eating and drinking. Feel of her crop at daylight tomorrow before she has had a chance to eat and drink, when her crop should be empty, and let us know what it feels like. Also, check her skin under the vent and legs, and elsewhere for evidence of lice or mites and their eggs.