What happened? – Farm Puzzle for Babies Free: Move Cartoon Images and Listen Sounds of Animals or Vehicles with Best Jigsaw Game and Top Fun for Kids, Toddlers and Preschool Review

My granddaughter loved this app so paid for full version. Can no longer open it. Can this be fixed so I don't have to delete and buy again?
Review by GiGi0710 on Farm Puzzle for Babies Free: Move Cartoon Images and Listen Sounds of Animals or Vehicles with Best Jigsaw Game and Top Fun for Kids, Toddlers and Preschool.