There was a problem with my server because of that some of my images were giving 404 Not Found Error. Now I fixed that problem but on item description still, there is a problem.
This is my item: https://codecanyon.net/item/facebook-elements-for-visual-composer/12026917
For example, there is an image under “Facebook Embed Posts” title which points to this URL: http://erayalakese.com/envato/vc-facebook-elements/doc-assets/post1.png
But when I inspect the page with Firebug I see that image is pointing to CloudFront CDN: https://d1a6a9r46cnyll.cloudfront.net/66b03fbca9b9d9e8c7759d0646f0f6eeb91318c2/687474703a2f2f65726179616c616b6573652e636f6d2f656e7661746f2f76632d66616365626f6f6b2d656c656d656e74732f646f632d6173736574732f706f7374312e706e67
But this file is not found. Is there any cache for images?