Vindors Demo import

I have purchased Vindors theme but unable to find and download the Demo sites. Please let me know how do i do that. I followed the Video but when i click on Unyson → Backup & Demo Content from WP dashboard then it says “No backup schedule created yet! We advise you to do it asap!”

Check the documentation first, there should be some information. If you cannot find it, you may need to contact the item author