Are you sure you purchased it from Themeforest as it seems that the purchase code is not valid for & not from the marketplace itself. Also it seems you’re using an older version of the theme. Please update it to latest by using Envato Marketplace plugin.
Also I can see that the VC is working perfectly on edit page. https://prnt.sc/sk7xg6
We’ll release updates of the themes with latest VC by next week hopefully so you can wait for the next week updates so far.