Uploaded your plugin and it isn't working

Hi thought I’d give your plugin a go and it installed fine as far as I can tell. Here is the link: https://www.fishingguidesbc.ca/videos

When you click on the video there is an error message. It’s been this way now for three days. The videos work by themselves. Any ideas?

https://www.ads-software.com/plugins/responsive-video-ultimate/