called out a frozen yogurt shop for carrying sugar-free options.The “Real Housewives of New York City” star, 38, slammed Lovato, 28, on Sunday for using her far-reaching voice to “drag” The Bigg Chill, a small business in Los Angeles, instead of addressing larger issues at hand.“Demi Lovato should be ashamed of herself for using her platform of 102 million people following her on Instagram to drag a frozen yogurt spot because she’s mad that they sell diet frozen yogurt and sugar-free options