Re: two severe issues
I had a look but I didn't try submitting anything because the site looks live. You are getting some very messy headers like when I click on the profile page I get
....finder.com/
wp/
wp-login.php?redirect_to=%2Fwp%2Fprofile%2F
which is very messy.
This is only a long shot but,
this reminds me of a problem I had once. It turns out that I made the problem when I edited the
wp-config file. It seems it is very fussy about having absolutely no characters before the first <?php not even empty lines and spaces and make sure you edit in utf-8 and not unicode. The latter can add invisible characters.
That redirect I see in the header is probably from your .htaccess file.
Sorry if that's useless to you.