The seller can't download the item?

Question

CMS

Hello, I installed the WC Marketplace plugin
So that sellers could register on the site and add products, but there was a problem in the control panel, the seller could not download the downloadable product on the developers' site there is a manual, but it is clearly outdated because there were no specified parameters in the plugin settings
. If sellers could upload a downloadable product from their panel, how to do it?