Free Version Bug On Add-Ons Installation

Tried to install some add-ons while using the free version and I get some strange error like:

EroareThis functionality is available only in the Full mode.

In order to have the full access to all features, purchase a license and activate the Full mode.”

but without any specification whatsoever as of WHICH add-on is meant by that!

That is very confusing.

Can you just nake it somehow so that we can know what exactely did not work out and which exact functionality is the error message reffering to?