APP QUIT WORKING!!!!!

My niece absolutely loved this game. She loved it so much that I bought the other 3 seasons.... It worked for the longest time then one day out of no where it says to download additional content to continue. You click on start download, then says an error has occurred please try again. You can hit try again 100+ times and it still dont work!!!! I want my money back!!!!!!! This is ridiculous!!

DisappointedLC15 about Olaf's Adventures, v2.1