He cambiado name como comentas y también he probado con localhost. Sigue sin funcionar.
El wp_config lo tengo así:
Código PHP:
<?php
// ** MySQL settings ** //
define('DB_NAME', 'avcomillblog'); // The name of the database
define('DB_USER', 'avcomillblog'); // Your MySQL username
define('DB_PASSWORD', '*******'); // ...and password
define('DB_HOST', 'mysql5-8'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');
// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!
// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', 'es_ES');
/* That's all, stop editing! Happy blogging. */
define('ABSPATH', dirname(__FILE__).'/');
require_once(ABSPATH.'wp-settings.php');
?>