upgrade to wordpress 4.4 breaks membership / upfront

hello guys,

when going to the membership registration page, after the wordpress 4.4 upgrade, i get this fun message.
Fatal error: Class 'WP_Screen' not found in /home/username/public_html/academy/wp-content/themes/upfront/elements/upfront-this-post/lib/this_post.php on line 539

i've enabled remote support...
:slight_smile:

puhleees help!