Erro com banco de dados no wordpress

[mathiasdataamerica]

Olá!

Encontrei um problema no meu site (dataamerica.net) e fui obrigado a restaurar o site e banco de dados. Usei o plugin Backup Guard.
Após a restauração, um erro aparece no site. Já entrei no wp-config.php e confirmei que todos os dados estão corretos.
 

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'u159491099_vamyb');

/** MySQL database username */
define('DB_USER', 'u159491099_lygar');

/** MySQL database password */
define('DB_PASSWORD', '*********');

/** MySQL hostname */
define('DB_HOST', 'http://mysql.hostinger.com.br');

/** Database Charset to use in creating database tables. */
define('DB_CHARSET', 'utf8');

/** The Database Collate type. Don't change this if in doubt. */
define('DB_COLLATE', '');

Meu site está apresentando o seguinte erro: 
 

Warning: mysqli_real_connect(): (HY000/2005): Unknown MySQL server host 'http' (-2) in /home/u159491099/public_html/wp-includes/wp-db.php on line 1490

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/u159491099/public_html/wp-includes/wp-db.php on line 1520

Warning: mysql_connect(): Unknown MySQL server host 'http' (-2) in /home/u159491099/public_html/wp-includes/wp-db.php on line 1520
Error establishing a database connection
This either means that the username and password information in your wp-config.php file is incorrect or we can’t contact the database server at http://mysql.hostinger.com.br. This could mean your host’s database server is down.

Are you sure you have the correct username and password?
Are you sure that you have typed the correct hostname?
Are you sure that the database server is running?
If you’re unsure what these terms mean you should probably contact your host. If you still need help you can always visit the WordPress Support Forums.

O que fazer para consertar o site?