Installed the "Quick Featured Images" plugin on my website, but have since been unable to access the admin version at all. Whenever I try to log in, I get the following error message.
Fatal error: Call to undefined function get_current_screen() in /home/theoasis/public_html/wp-content/plugins/quick-featured-images/admin/class-quick-featured-images-admin.php on line 429
The website shows as per normal, but I can't get in to edit anything.