Great way to get to the App Store

So I used to love this app, but recently, I cant play it anymore. Literally.
I open a puzzle, play for two minutes and then it opens the App Store. There have always been banner ads above the game but now I cant do anything in the game. I shut the App Store, go back to this app, and it instantly opens back up the App Store. If I try closing this app, the cycle repeats. Theres no way to play anymore

CaMiche124 about Sudoku (Full Version), v9.0.2