Unable to connect to database server

This either means that the username and password information in your settings.php file is incorrect or we can't contact the MySQL database server through the mysqli libraries. This could also mean your hosting provider's database server is down.

The MySQL error was: .

Currently, the username is and the database server is .

• 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?
• Are you sure that the mysqli libraries are compiled in your PHP installation? Try using the mysql library instead by editing your settings.php configuration file in Drupal.

For more help, see the Installation and upgrading handbook. If you are unsure what these terms mean you should probably contact your hosting provider.