Ad banner takes up too much screen space.

I have played POGO games as a free player for almost 5 years and have never had much of an issue.  Starting about 4 days ago, however, every game is unplayable.  There is a new ad banner at the top of the game screen that is so big that roughly 2" of game screen cannot be seen at the bottom.  I cannot even click play on most games much less use a booster or see a hand of cards.  I use a Chromebook and  full screen.  PLEASE HELP AND FIX!