[Social plug-in] Cannot add new comment

I’ve installed Social 1.0 on my blog at https://alias.codiferes.net/wordpress, using a slightly-modified version of the Magazine Basic theme, but my users had then lost the possibility to add comments.

I’ve disabled it since, of course, but I’m a bit sad as this looked like a very interesting idea.

Since I also use WP-Minify, could this be the culprit?

Many thanks in advance!