Fatal error: Uncaught Error: Call to undefined function add_action() in /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/admin/class-ogf-upload-fonts-screen.php:44 Stack trace: #0 /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/admin/class-ogf-upload-fonts-screen.php(34): OGF_Upload_Fonts_Screen->__construct() #1 /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/admin/class-ogf-upload-fonts-screen.php(255): OGF_Upload_Fonts_Screen::get_instance() #2 {main} thrown in /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/admin/class-ogf-upload-fonts-screen.php on line 44