Quote Originally Posted by lat9 View Post
By the preview, do you mean the template's demo site (https://vinosdefrutastropicales.com/zc157_bs4/)? If so, that Documents sidebox (when enabled) shows your site's products that are of type document-general and document-product.

If you don't have any products of those types, that Documents box doesn't display.
I tried creating both types and it did show up.