There is not a whole lot that can be done for a hen with reproductive issues, except to try to keep them eating and drinking. Worming occasionally once or twice a year, and feeding a balanced chicken feed with a little egg occasionally. Keep a watch on her crop function, since an impacted or...
From the way she is standing upright in the last photo, she might be suffering from salpingitis. They can develop egg masses inside the abdomen which is called coelomitis or egg yolk peritonitis. How old is she now? Does she appear to be molting? I would try to get her drinking and eating. Feel...