FuelPHP Auth::create_user() error

Error - SQLSTATE[HY000]: General error: 1364 Field 'last_login' doesn't have a d efault value with query: "INSERT INTO `users` (`username`, `password`, `email`, `group`, `profile_fields`, `created_at`) VALUES ('philsturgeon', 'NtgTF8q6Z9UyyU wQS7Ma5Bvj+uTrK/F66iMji9su1XY=', 'phil@example.com', 100, 'a:0:{}', 1341765140)" in COREPATH/classes/database/pdo/connection.php on line 167