Fatal error: Uncaught Error: Call to undefined function MasterAddons\Inc\Classes\add_action() in /var/www/html/wordpress/wp-content/plugins/master-addons/inc/classes/class-reset-themes.php:20 Stack trace: #0 /var/www/html/wordpress/wp-content/plugins/master-addons/inc/classes/class-reset-themes.php(70): MasterAddons\Inc\Classes\Jltma_Reset_Themes_Conflicts->__construct() #1 /var/www/html/wordpress/wp-content/plugins/master-addons/inc/classes/class-reset-themes.php(76): MasterAddons\Inc\Classes\Jltma_Reset_Themes_Conflicts::get_instance() #2 {main} thrown in /var/www/html/wordpress/wp-content/plugins/master-addons/inc/classes/class-reset-themes.php on line 20