Hey mommies

My baby is 8.5 months old. Today i gave him apple puree and lil potato mash. Now when i feed him he doing vomit whole milk.. im tensed. What could be the reason. He has done 2 times vomit in evening today . Potato normally i give him from my sabji but today i made seperate for him roasted in ghee then mashed nd added lil water nd salt. Apple given raw madhed