Update for Parallax & Video Backgrounds for WPBakery Page Builder

As I could see in the wordpress dashbaord there is are new version of Parallax & Video Backgrounds for WPBakery Page Builder. My version is 1.5.14 which came which your theme and the new version should be 1.5.15 according to wordpress. But it seems I need a license for that. Unfortunately the link for the plugin homepage https://codecanyon.net/cart/add_items?item_ids=7320433&ref=BrainstormForce doesn’t add the plugin to the cart.
I search for the plugin and find out that the item is no longer available see https://codecanyon.net/item/parallax-video-backgrounds-for-visual-composer/7320433.
As the technical responsible of my conpany, I have to ensure that everything which is hosted on our server hasn’t security risks.
So I now wonder if the plugin is still actively maintained?
If so could you please tell me where my company could obtain a license.
If not is it possible to use your fantastic theme without this plugin.
What would be the disadvantages of uninstalling the plugin on the WP instance of the client my company serve.
Actual we don’t use any parallax or video backgrounds and this would not changed in future due there is no need for our client.