Full screen pop up ads!!!

I can deal with the ads at the bottom of each article but now am getting pop up ads that take up the full screen. Seems to appear when new article is opened at random times. Also occurs after the article has been opened for a while. I have been using this app for years but will be deleting until the pop-ups are gone!

Bklennert about Engadget: Technology, Features, v4.4.0