<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: Root_Loader.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
/**
 * File: Root_Loader.php
 *
 * @package W3TC
 */

namespace W3TC;

/**
 * Class: Root_Loader
 *
 * phpcs:disable PSR2.Classes.PropertyDeclaration.Underscore
 */
class Root_Loader {
	/**
	 * Enabled Plugins that has been run
	 *
	 * @var W3_Plugin[]
	 */
	private $_loaded_plugins = array();

	/**
	 * Enabled extensions that has been run
	 *
	 * @var W3_Plugin[]
	 */
	private $_loaded_extensions = array();

	/**
	 * Constructor.
	 */
	public function __construct() {
		$c = Dispatcher::config();

		$plugins   = array();
		$plugins[] = new Generic_Plugin();

		if ( $c-&gt;get_boolean( 'dbcache.enabled' ) ) {
			$plugins[] = new DbCache_Plugin();
		}

		if ( $c-&gt;get_boolean( 'objectcache.enabled' ) ) {
			$plugins[] = new ObjectCache_Plugin();
		}

		if ( $c-&gt;get_boolean( 'pgcache.enabled' ) ) {
			$plugins[] = new PgCache_Plugin();
		}

		if ( $c-&gt;get_boolean( 'cdn.enabled' ) ) {
			$plugins[] = new Cdn_Plugin();
		}

		if ( $c-&gt;get_boolean( 'cdnfsd.enabled' ) ) {
			$plugins[] = new Cdnfsd_Plugin();
		}

		if ( $c-&gt;get_boolean( 'lazyload.enabled' ) ) {
			$plugins[] = new UserExperience_LazyLoad_Plugin();
		}

		if ( $c-&gt;get_boolean( 'browsercache.enabled' ) ) {
			$plugins[] = new BrowserCache_Plugin();
		}

		if ( $c-&gt;get_boolean( 'minify.enabled' ) ) {
			$plugins[] = new Minify_Plugin();
		}

		if ( $c-&gt;get_boolean( 'varnish.enabled' ) ) {
			$plugins[] = new Varnish_Plugin();
		}

		if ( $c-&gt;get_boolean( 'stats.enabled' ) ) {
			$plugins[] = new UsageStatistics_Plugin();
		}

		if ( is_admin() ) {
			$plugins[] = new Generic_Plugin_Admin();
			$plugins[] = new BrowserCache_Plugin_Admin();
			$plugins[] = new DbCache_Plugin_Admin();
			$plugins[] = new UserExperience_Plugin_Admin();
			$plugins[] = new ObjectCache_Plugin_Admin();
			$plugins[] = new PgCache_Plugin_Admin();
			$plugins[] = new Minify_Plugin_Admin();
			$plugins[] = new Generic_WidgetSpreadTheWord_Plugin();
			$plugins[] = new Generic_Plugin_WidgetNews();
			$plugins[] = new Generic_Plugin_WidgetForum();
			$plugins[] = new SystemOpCache_Plugin_Admin();

			$plugins[] = new Cdn_Plugin_Admin();
			$plugins[] = new Cdnfsd_Plugin_Admin();

			$cdn_engine = $c-&gt;get_string( 'cdn.engine' );

			$plugins[] = new PageSpeed_Api();
			$plugins[] = new PageSpeed_Page();

			if ( $c-&gt;get_boolean( 'widget.pagespeed.enabled' ) ) {
				$plugins[] = new PageSpeed_Widget();
			}

			$plugins[] = new Generic_Plugin_AdminCompatibility();
			$plugins[] = new Licensing_Plugin_Admin();

			if ( $c-&gt;get_boolean( 'pgcache.enabled' ) || $c-&gt;get_boolean( 'varnish.enabled' ) ) {
				$plugins[] = new Generic_Plugin_AdminRowActions();
			}

			$plugins[] = new Extensions_Plugin_Admin();
			$plugins[] = new Generic_Plugin_AdminNotifications();
			$plugins[] = new UsageStatistics_Plugin_Admin();
			$plugins[] = new SetupGuide_Plugin_Admin();
			$plugins[] = new FeatureShowcase_Plugin_Admin();
		} else {
			if ( $c-&gt;get_boolean( 'jquerymigrate.disabled' ) ) {
				$plugins[] = new UserExperience_Plugin_Jquery();
			}
		}

		$this-&gt;_loaded_plugins = $plugins;

		register_activation_hook(
			W3TC_FILE,
			array( $this, 'activate' )
		);

		register_deactivation_hook(
			W3TC_FILE,
			array( $this, 'deactivate' )
		);
	}

	/**
	 * Run plugins
	 */
	public function run() {
		foreach ( $this-&gt;_loaded_plugins as $plugin ) {
			$plugin-&gt;run();
		}

		if ( method_exists( $GLOBALS['wpdb'], 'on_w3tc_plugins_loaded' ) ) {
			$o = $GLOBALS['wpdb'];
			$o-&gt;on_w3tc_plugins_loaded();
		}

		$this-&gt;run_extensions();
	}

	/**
	 * Activation action hook
	 *
	 * @param bool $network_wide Network wide flag.
	 */
	public function activate( $network_wide ) {
		Root_AdminActivation::activate( $network_wide );
	}

	/**
	 * Deactivation action hook
	 */
	public function deactivate() {
		Root_AdminActivation::deactivate();
	}

	/**
	 * Loads extensions stored in config
	 */
	public function run_extensions() {
		$c          = Dispatcher::config();
		$extensions = $c-&gt;get_array( 'extensions.active' );

		$frontend = $c-&gt;get_array( 'extensions.active_frontend' );
		foreach ( $frontend as $extension =&gt; $nothing ) {
			if ( isset( $extensions[ $extension ] ) ) {
				$path     = $extensions[ $extension ];
				$filename = W3TC_EXTENSION_DIR . '/' . str_replace( '..', '', trim( $path, '/' ) );

				if ( file_exists( $filename ) ) {
					include_once $filename;
				}
			}
		}

		if ( is_admin() ) {
			foreach ( $extensions as $extension =&gt; $path ) {
				$filename = W3TC_EXTENSION_DIR . '/' .
					str_replace( '..', '', trim( $path, '/' ) );

				if ( file_exists( $filename ) ) {
					include_once $filename;
				}
			}
		}

		w3tc_do_action( 'wp_loaded' );
		do_action( 'w3tc_extension_load' );
		if ( is_admin() ) {
			do_action( 'w3tc_extension_load_admin' );
		}

		// Hide Image Service converted images.
		$settings   = $c-&gt;get_array( 'imageservice' );
		$visibility = isset( $settings['visibility'] ) ? $settings['visibility'] : 'never';

		if ( 'never' === $visibility || ( 'extension' === $visibility &amp;&amp; ! isset( $extensions['imageservice'] ) ) ) {
			add_action(
				'pre_get_posts',
				array( $this, 'w3tc_modify_query_obj' )
			);

			add_filter(
				'ajax_query_attachments_args',
				array( $this, 'w3tc_filter_ajax_args' )
			);
		}
	}

	/**
	 * Modify query object to hide Image Service converted images.
	 *
	 * @param object $query WP_Query object.
	 *
	 * @return void
	 */
	public function w3tc_modify_query_obj( $query ) {
		if ( ! is_admin() || ! $query-&gt;is_main_query() ) {
			return;
		}

		$screen = get_current_screen();

		if ( ! $screen || 'upload' !== $screen-&gt;id || 'attachment' !== $screen-&gt;post_type ) {
			return;
		}

		// Get the existing meta query array, add ours, and then save it.
		$meta_query   = (array) $query-&gt;get( 'meta_query' );
		$meta_query[] = array(
			'key'     =&gt; 'w3tc_imageservice_file',
			'compare' =&gt; 'NOT EXISTS',
		);

		$query-&gt;set( 'meta_query', $meta_query );
	}

	/**
	 * Filter AJAX query arguments for attachements to hide Image Service converted images.
	 *
	 * @param string $args arguments.
	 *
	 * @return void
	 */
	public function w3tc_filter_ajax_args( $args ) {
		if ( ! is_admin() ) {
			return;
		}

		$args['meta_query'] = array( // phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
			array(
				'key'     =&gt; 'w3tc_imageservice_file',
				'compare' =&gt; 'NOT EXISTS',
			),
		);

		return $args;
	}
}

global $w3tc_root;
if ( is_null( $w3tc_root ) ) {
	$w3tc_root = new \W3TC\Root_Loader();
	$w3tc_root-&gt;run();
}
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