New ad at bottom of page appears to cause problems on Samsung Note tablet

I have a Samsung Note Pro tablet and and navigation has become very erratic with a lot of freezing, areas non-responsive, and it not recognizing my stylus. It might be related to the new ad at the bottom of the Web page, as it doesn’t respond to being closed.

But maybe something else?

Install an ad blocker. I did that on my PC and it solved the problem.