error to occured in my program plz solve this
Error Number: 1054
Unknown column 'firstname' in 'field list'
INSERT INTO `account` (`firstname`, `lastname`, `age`, `gender`, `emailad`, `username`, `password`) VALUES ('siva', 'vijayaram', '26', 'male', '[email protected]', 'sivaneshan', '38657bfe467c614bac34517525a4ff2283f89905')
Filename: D:\wamp\www\ci\Ranjit\system\database\DB_driver.php
Line Number: 330