Edit file File name : class-astra-ext-advanced-search.php Content :<?php /** * Advanced Search Extension * * @package Astra Addon */ define( 'ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR', ASTRA_EXT_DIR . 'addons/advanced-search/' ); define( 'ASTRA_ADDON_EXT_ADVANCED_SEARCH_URL', ASTRA_EXT_URI . 'addons/advanced-search/' ); if ( ! class_exists( 'Astra_Ext_Advanced_Search' ) ) { /** * Advanced Search Initial Setup * * @since 1.4.8 */ // @codingStandardsIgnoreStart class Astra_Ext_Advanced_Search { // @codingStandardsIgnoreEnd /** * Member Variable * * @var object instance * @since 1.4.8 */ private static $instance; /** * Initiator * * @since 1.4.8 */ public static function get_instance() { if ( ! isset( self::$instance ) ) { self::$instance = new self(); } return self::$instance; } /** * Constructor function that initializes required actions and hooks * * @since 1.4.8 */ public function __construct() { require_once ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR . 'classes/class-astra-ext-adv-search-loader.php'; require_once ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR . 'classes/class-astra-ext-adv-search-markup.php'; require_once ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR . 'classes/class-astra-ext-adv-search-shortcodes.php'; require_once ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR . 'classes/dynamic.css.php'; if ( version_compare( ASTRA_THEME_VERSION, '3.2.0', '<' ) ) { require_once ASTRA_ADDON_EXT_ADVANCED_SEARCH_DIR . 'dynamic.css.php'; } } } /** * Kicking this off by calling 'get_instance()' method */ Astra_Ext_Advanced_Search::get_instance(); } Save