Warning: mysqli_real_connect(): (HY000/2002): Connection refused in /var/www/html/wp-includes/class-wpdb.php on line 1994 Call Stack: 0.4689 455056 1. {main}() /var/www/html/index.php:0 0.4690 455408 2. require('/var/www/html/wp-blog-header.php') /var/www/html/index.php:17 0.4691 456048 3. require_once('/var/www/html/wp-load.php') /var/www/html/wp-blog-header.php:13 0.4691 456800 4. require_once('/var/www/html/wp-config.php') /var/www/html/wp-load.php:50 0.4692 566904 5. require_once('/var/www/html/wp-settings.php') /var/www/html/wp-config.php:151 0.8604 778352 6. require_wp_db() /var/www/html/wp-settings.php:136 0.9213 780152 7. wpdb->__construct($dbuser = 'wp', $dbpassword = '[Sensitive Parameter]', $dbname = 'wordpress', $dbhost = 'db:3306') /var/www/html/wp-includes/load.php:724 0.9213 780200 8. wpdb->db_connect($allow_bail = ???) /var/www/html/wp-includes/class-wpdb.php:772 0.9267 780912 9. mysqli_real_connect($mysql = class mysqli { public $client_info = 'mysqlnd 8.2.30'; public $client_version = 80230; public $connect_errno = 2002; public $connect_error = 'Connection refused'; public $errno = 2002; public $error = 'Connection refused' }, $hostname = 'db', $username = 'wp', $password = '[Sensitive Parameter]', $database = NULL, $port = 3306, $socket = NULL, $flags = 0) /var/www/html/wp-includes/class-wpdb.php:1994 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:3306 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.