Fatal error: Uncaught Error: Call to undefined function add_action() in /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/includes/class-ogf-clear-cache.php:27 Stack trace: #0 /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/includes/class-ogf-clear-cache.php(111): OGF_Clear_Cache->__construct() #1 {main} thrown in /home/kolenggf/public_html/wp/wp-content/plugins/olympus-google-fonts/includes/class-ogf-clear-cache.php on line 27