Warning: mysql_connect (): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in /var/www/citic/wp-includes/wp-db.php on line 1473 Database connection error This means that the usernames and passwords in your file wp-config.phpare incorrect, or that we cannot contact the database server at localhost. This may mean that your hosting database is unavailable. Are you sure your login details are correct? Are you sure you entered the correct hosting address? Are you sure your database server is running? If you are not sure you understand these questions, you should contact your web host. If you still need help, you can visit the WordPress Francophone support forums .