PDOException: Integrity constraint violation 19 NOT NULL constraint failed

[jbrooksuk]

jamesbrooks@jbrooksuk Cachet (master) $ php artisan tinker
$[1] > $incident = new Incident;
// object(Incident)(
//   'incrementing' => true,
//   'timestamps' => true,
//   'exists' => false
// )
[2] > $incident->name = "Test";
// 'Test'
[3] > $incident->message = "This is a test incident. Something went wrong.";
// 'This is a test incident. Something went wrong.'
[4] > $incident->save();
PHP Fatal error:  Uncaught exception 'PDOException' with message 'SQLSTATE[23000]: Integrity constraint violation: 19 NOT NULL constraint failed: incidents.status' in /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php:369
Stack trace:
#0 /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php(369): PDOStatement->execute(Array)
#1 /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php(617): Illuminate\Database\Connection->Illuminate\Database\{closure}(Object(Illuminate\Database\SQLiteConnection), 'insert into "in...', Array)
#2 /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php(581): Illuminate\Database\Connection->runQueryCallback('insert into "in...', Array, Object(Closure))
#3 /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php(370): Illuminate\Database\Connection->run('insert into "in...', Array, Object(Closure)) in /Users/jamesbrooks/Sites/Cachet/vendor/laravel/framework/src/Illuminate/Database/Connection.php on line 625
[5] > exit;

I rarely use SQLite, so it's probably an obvious error.