Conflict with YouTube embed

We’re working on a site that has your parallax plugin but we also have a YouTube embedded video on the page (see https://app-cprd-flatholmart.azurewebsites.net/#:~:text=Trip%20to%20the%20lighthouse) but when your plugin is active the youtube video doesn’t display. With your plugin deactivated the youtube video displays correctly.

The page I need help with: [log in to see the link]