chicken 6/7 months

Heyo hope everyone’s doing well. Just curious as to why my 3 pullets and also other pullets from the flock haven’t been laying at all but they’ve already reached 6-7 months old? Understandably my older hens have taken a break especially due to cold weather lately and just overall egg productive...

I'm not sure what to do but my 6/7 month old pullet or hen has a broken foot/toe by one of the roosters trying to get on her (because of mating..) and I need some help. I have no idea what do and she is being picked on. Her name is Snow and she is a Buff Orpington.