If you use Firefox and you haven’t updated Adobe Flash in a while, you might see an error message appear when you first visit the site. First thing you should do is click Allow (see screenshot 1).
After you click Allow, a box should appear in the upper left hand corner of your screen (see screenshot 2). Click the link Update now… in order to update Adobe Flash.
You will then be redirect to Adobe’s site, where you will be asked to download the update and then install it. Once you install it, restart your browser, and you shouldn’t see the error message again until the next update is released.