Before begining you need to change OPJB_libs/db_config.php
Change server and database setting.
define( 'DB_SERVER', eneter your host name);
define( 'DB_USER', 'enter username of your database' );
define( 'DB_PASS', 'enter password for youer database' );
define( 'DB_NAME', 'enter name of your database' );
define( 'DB_PREFIX', 'enter prefix for database tables names' );
Once you have enter correct details and your connected you will receive successfully connectted message
You are connected successfully.
WARNING: THIS WILL DELETE ALL TABLES FROM YOUR DATABASE.
Click on Step 2.