Have you tried installing the “installable” file at the bottom?
As the license image you shared says - that is for things like premium support which is not included with elements.
Envato Elements don’t provide any purchase code. You don’t need any purchase codes to use Element’s items. You can just ignore any requests to enter one. please just ignore entering the purchase code and it will work fine for you.
So, Just ignore activate the pro licensing and it should work fine with your plugin activation.
without key they are not providing there premium product service or features…that features i can use without any membership.
Sorry! to say in this case if you need those extra features then you have to purchase a license from envato market (codecanyon) because Envato Elements don’t provide any purchase code.
then what is the purpose of envato membership if we need to purchase the products
You don’t. The plugin still works - as with themes etc. it’s only the premium features like support and updates etc. that are not included (as per elements FAQ).
This is necessary to distinguish between elements and the main marketpalces and make it fair for everyone.