My rabbit has stopped feeding her litter?

I know this is not an answer but I am having the same problem but my baby rabbits are only 4 wks old and the momma won't feed them at all, she runs from them if they get close to her at all. I know at 7 wks, u can give them artificial milk ir chopup fesh parsley and celery tops and take the momma out of the cage and the babies will start eating the mush but u just have to give them water in a dropper.