Ad wont close

I like this game but while the touch screen on my phone works the whole time, it magically doesnt work when the ad comes up even though there was a little X in the corner. I have to quit the game and reloaded every single time the ad loads.

kkirsner86 about Hexagon Fit: 10/10 Hex Puzzle Game - Bricks Block Logic Grid Puzzles Word For Brain Training, v1.2