Fatal error: Uncaught Error: Call to undefined method DatabaseConfig::getUsername() in /home/sgtackle.com/billing.sgtackle.com/models/Database.php:14 Stack trace: #0 /home/sgtackle.com/billing.sgtackle.com/models/Database.php(29): Database->__construct() #1 /home/sgtackle.com/billing.sgtackle.com/index.php(125): Database::getInstance() #2 {main} thrown in /home/sgtackle.com/billing.sgtackle.com/models/Database.php on line 14