I just now updated my LibreELEC to the latest version and still am having issues with addons such as Youtube. I was able to add Youtube to OpenELEC without a hitch but not Libre. Why? I click the install button to add it. My ELEC freezes for a minute or two then releases and returns nothing. I tried to install the addon with VPN enabled and disabled to no avail. What I like about it over Open, however, is that VPN actually works and updating it is a snap. What gives?
Update: Found that I can download the zip files for popular addons at Kodi.tv. Feeling better now