Hi,
fixed, I have changed the alias of the "Home" menu item from "home" to "homepage" (see screenshot)

The social network plugin uses a bit of sublinks like /home, /groups, /topics, ... If you have social network plugin menu item as homepage then these link will be something like http://your-domain.com/home, http://your-domain.com/groups, http://your-domain.com/topics, ...

Of course if you have a page with alias like "home" then the link http://your-domain.com/home will be reserved by this menu item, so the links like invite (/home/index/tab:invite-friends) can generate conflicts