Fatal error: Uncaught Error: Call to undefined function add_action() in /opt/lampp/htdocs/support/wp-content/themes/themify-peak/themify/themify-builder/classes/class-themify-builder-gutenberg.php:17 Stack trace: #0 /opt/lampp/htdocs/support/wp-content/themes/themify-peak/themify/themify-builder/classes/class-themify-builder-gutenberg.php(165): Themify_Builder_Gutenberg::init() #1 {main} thrown in /opt/lampp/htdocs/support/wp-content/themes/themify-peak/themify/themify-builder/classes/class-themify-builder-gutenberg.php on line 17