TypeError: H5PIntegration.contents

TypeError: H5PIntegration.contents[("cid-" + contentId)] is undefined on line #401 in http://www.centurytree.net/wp-includes/js/jquery/jquery.js?ver=1.12.4-wp line 2 > eval

I am getting this error in the visual editor of the Oxygen page builder plugin for Wordpress.  Everthing seems to be working on the front end, but I keep seeing this error on the back end (inside the visual editor of Oxygen).

Any suggestions would be greatly appreciated!