[Plugin: Shadowbox JS] Plugin stopped functioning

Hi, using this plugin on my site and it has been working great (paid for it too). However, it just stopped working. I have not done anything major to the site. Now the videos do not open in the shadow box, but rather open full screen and you can not close them or get back to the page properly at all. Please check it out and let me know what you think. https://moonandback.com