Hello Stefano,

There's actually an issue with Joomla's canonical plugin as it seems like it's trying to add it's own canonical via it's SEF plugin and the menu that Joomla has is view=latest . I have added some hacks in the file /plugins/system/sef.php so that Joomla wouldn't add a canonical tag on EasyBlog pages.

By the way, your site is really really slow for me. I think your ISP has some issues because the page takes about 60 seconds to load everywhere.