On March 27, 2014 I allowed the Graphene update to be applied. After doing so I received the following error in the Admin section and cannot manage/update my site. Public facing site seems to still be running and viewable.
Any assistance to rectify this would be appreciated.
Fatal error: Call to undefined function get_current_screen() in /home/rebbekka/public_html/wp/wp-content/themes/graphene/includes/theme-head.php on line 230