Custom Carousel and Customdatasource

Hi all. I would to integrate Nop JCarousel with a Customdatasource. I follow  http://www.nop-templates.com/Help/NopJCarousel/Version_2_6/lessons/Integration.html
https://www.nop-templates.com/boards/topic/469/how-to-add-custom-data-source-type-to-nop-jcarousel

I created the "CustomCarousel" in admin but if  insert  

@Html.Action("JCarousel", "JCarousel", new { carouselName = "CustomCarousel", productModels = Model.Products }) or @Html.Action("JCarousel", "JCarousel", new { carouselName = "CustomCarousel" }) the server return error

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Thank you lot

Hello,

This was a feature back in nopCommerce version 2.60 and is, unfortunately, no longer present in the JCarousel plugin.
The information you are looking at is an old documentation of the plugin and a post from 4 years ago.