WordPress Themes on Envato Elements (Broken Links)

When I open this page on Elements (WordPress category) - https://elements.envato.com/wordpress
The live demo/preview for first item “SUVAD” does not work.
The live demo/preview for the 4th item “Construction” does not work.

And there is lot more items which does not work or link is wrong.

Personal, I don’t have/sell items on Elements and I am not interested (don’t have a need) to buy there - but all this looks really unprofessional. You must have more control over that - hire someone just to check if are all items live or not.

Also, there is a lot of HTML templates on Elements with same problem - live preview does not work.