Hello, @IvanMTK,
I have again checked your site now and find it is working perfectly fine and there is no twice price, here is the video: https://www.veed.io/view/7a28602e-29d0-4248-8dde-07c2d73d0865?sharingWidget=true so it must be the cache issue at your end nothing else, please try to check once after clearing the site and browser cache.
Regards 8Themes Team.