Not at all! 😀 Chickens molt from September to up to January and sometimes you will not even notice that they are molting. Light molters and Heavy molters. Heavy molters look like they are bald.
Here's a great article to refresh your memory on molting chickens...
It doesn't really matter whether they have runny poops or not but I wouldn't completely stop giving them Pumpkin because pumpkins are really good for chickens and can actually help hens that are molting, grow new healthy feathers.
Looks like she has been drinking a lot. Sometimes this happens during molt. Poops can look a bit different when there bodies are worried about new feathers. 😁