( ! ) Warning: mysqli_real_connect(): (HY000/2002): Connection refused in /var/www/sites/www.wantysz.cn/wp-includes/wp-db.php on line 1753
Call Stack
10.0002358944{main}( ).../index.php:0
20.0003359224require( '/var/www/sites/www.wantysz.cn/wp-blog-header.php ).../index.php:17
30.0003359608require_once( '/var/www/sites/www.wantysz.cn/wp-load.php ).../wp-blog-header.php:13
40.0003360296require_once( '/var/www/sites/www.wantysz.cn/wp-config.php ).../wp-load.php:50
50.0004361576require_once( '/var/www/sites/www.wantysz.cn/wp-settings.php ).../wp-config.php:100
60.0014578816require_wp_db( ).../wp-settings.php:124
70.0014580360wpdb->__construct( $dbuser = 'www.wantysz.cn', $dbpassword = '53372d2d0d488e971907fe2', $dbname = 'www.wantysz.cn', $dbhost = 'db' ).../load.php:561
80.0014580360wpdb->db_connect( $allow_bail = ??? ).../wp-db.php:724
90.0015581928mysqli_real_connect( $link = class mysqli { public $client_info = 'mysqlnd 7.4.29'; public $client_version = 70429; public $connect_errno = 2002; public $connect_error = 'Connection refused'; public $errno = 2002; public $error = 'Connection refused' }, $host = 'db', $user = 'www.wantysz.cn', $password = '53372d2d0d488e971907fe2', $database = NULL, $port = NULL, $socket = NULL, $flags = 0 ).../wp-db.php:1753
WordPress › Error

Connection refused

Error establishing a database connection

This either means that the username and password information in your wp-config.php file is incorrect or that contact with the database server at db could not be established. This could mean your host’s database server is down.

If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.