If you click on a video and you get an error message or the video does not play, you
will need to clear out the browsing hsitory on the browser or device you are using.
This link takes you to an article that provides step-by-step intructions on how to
do this on whichever browser you are using. Once you have cleared your cache, refresh the page by click-on on the browsers refresh
button (the circle-arrow in upper left of screen next to the "back" button) or close
out browser and reopen for changes to take effect.
HOW-TO CLEAR YOR CACHE IN ANY BROWSER