Comments on profile page

I’ve already searched around, but I couldn’t solve my issue yet. I’m trying to allow people to add comments on my profile page.

My blog is: https://tatianeps.net/
My profile page is: https://tatianeps.net/perfil/

1) You will not find the comment form on the profile link above, because I do all my development and testing stuff on my computer (a localhost installation).

2) I’ve already added <?php comments_template(); ?> to my profile.php template page.

3) Since I’m the one developing PinkAndWhite (my current theme), I know it’s ins and outs.

4) I’m using the very same comments template on the profile page. It works perfectly on blog posts.

Now that I hope we’re understood. And I hope fellows won’t just reply “add <?php comments_template(); ?>” (see number 1 and 2 above).

The problem is, when I hit the send button, it stops loading on wp-comments-post.php (https://localhost/public_html/wp-comments-post.php), therefore the comment is not added.

If any further details are necessary, just let me know.

Thanks! =)