Remove the below portion from advanced-cache.php
global $w3tc_start_microtime;
$w3tc_start_microtime = microtime( true );
/**
* Abort W3TC loading if WordPress is upgrading
*/
if ( defined( ‘WP_INSTALLING’ ) && WP_INSTALLING )
return;
if ( !defined( ‘W3TC_IN_MINIFY’ ) ) {
if ( !defined( ‘W3TC_DIR’ ) ) {
define( ‘W3TC_DIR’, ( defined( ‘WP_PLUGIN_DIR’ ) ? WP_PLUGIN_DIR : WP_CONTENT_DIR . ‘/plugins’ ) . ‘/w3-total-cache’ );
}
if ( !@is_dir( W3TC_DIR ) || !file_exists( W3TC_DIR . ‘/w3-total-cache-api.php’ ) ) {
if ( defined( ‘WP_ADMIN’ ) ) { // lets don’t show error on front end
echo sprintf( ‘W3 Total Cache Error: some files appear to be missing or out of place. Please re-install plugin or remove %s. <br />’, __FILE__ );
}
} else {
require_once W3TC_DIR . ‘/w3-total-cache-api.php’;
$w3tc_redirect = \W3TC\Dispatcher::component( ‘Mobile_Redirect’ );
$w3tc_redirect->process();
$w3tc_config = \W3TC\Dispatcher::config();
if ( $w3tc_config->get_boolean( ‘pgcache.enabled’ ) ) {
$o = \W3TC\Dispatcher::component( ‘PgCache_ContentGrabber’ );
$o->process();
}
}
}
Everything will work Fine – Guaranteed