Laravel 5.2 FatalErrorException in casasController.php line 51 - laravel

Question

i need your help. i'm building a webApp in Laravel5.2. This is the probles i can't solve...FatalErrorException in casasController.php line 51; i really dont know what to do...the odject is correctly declared in namespace and its saved once validate!
This is my controller:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Oggetto;
use App\Categoria;
use DB;
use Session;
class casasController extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$oggetti = DB::table('casas')->get();
$categoriasSelect = DB::table('categorias')->get();
return view('pages.casa')->with('categoriasSelect', $categoriasSelect)->with('oggetti', $oggetti);
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
//
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$this->validate($request, [
'nome' => 'required',
'categoria' => 'required',
'descrizione' => 'required'
]);
$oggetto = new Oggetto;
$oggetto->nome = $request->nome;
$oggetto->categoria = $request->categoria;
$oggetto->descrizione = $request->descrizione;
$status = $request->nome;
$oggetto->save();
Session::flash('success', 'Il tuo oggetto per la casa è stato salvato con successo!');
return view('pages.casa')->with('oggetto', $oggetto);
}
/**
* Display the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function show($id)
{
//
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
//
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param int $id
* #return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
//
}
/**
* Remove the specified resource from storage.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
//
}
}
These are my routes:
Route::get('/', 'pagesController#index');
Route::group(array('prefix' => 'luogo'), function(){
Route::get('casa',['as' => 'opzione1', 'uses' => 'casasController#index']);
Route::get('parco',['as' => 'opzione2', function(){
return view('pages.parco');
}]);
Route::get('stazione',['as' => 'opzione3', function(){
return view('pages.stazione');
}]);
});
Route::post('nome', ['as' => 'nomeInput', 'uses' => 'pagesController#form']);
//Authentication Routes(login) -->built in
Route::get('auth/login', ['as' => 'login', 'uses' => 'Auth\AuthController#getLogin']);
Route::post('auth/login', ['as' => 'loginPost', 'uses' => 'Auth\AuthController#postLogin']);
Route::get('auth/logout', [ 'as' => 'logout', 'uses' => 'Auth\AuthController#getLogout']);
//Registration Routes(new users) -->built in
Route::get('auth/register', ['as' => 'register', 'uses' => 'Auth\AuthController#getRegister']);
Route::post('auth/register', 'Auth\AuthController#postRegister');
Route::post('categoria', ['as' => 'categ', 'uses' => 'categoriasController#newCat']);
Route::resource('oggetto/{status?}', 'casasController', ['except' => ['show']]);
This is my view:
#extends('main')
#section('content')
<h1 class="text-center">Benvenuto a Casa</h1>
<h3 class="text-center"> Aggiungi un oggetto</h3>
<div class="row">
<div class="col-md-8 col-md-offset-2">
#if(count($errors) > 0)
#foreach($errors->all() as $error)
<div class="alert alert-danger">{{$error}}</div>
#endforeach
#elseif(Session::has('success'))
<div class="alert alert-success">{{Session::get('success')}}</div>
#endif
<table class="table table-striped">
<thead>
<tr>
<th>Nome</th>
<th>Categoria</th>
<th>Descrizione</th>
<th colspan="2">Azioni</th>
</tr>
</thead>
<tbody>
#foreach($oggetti as $oggetto)
<tr>
<td>{{$oggetto->nome}}</td>
<td>{{$oggetto->categoria}}</td>
<td>{{$oggetto->descrizione}}</td>
<td><button type="button" class="btn btn-info btn-block">Editare</button></td>
<td><button type="button" class="btn btn-danger btn-block">Cancellare</button></td>
</tr>
#endforeach
</tbody>
</table>
</div>
</div>
<div class="row" id="formOggetto" style="display: none; margin-top: 25px">
<div class="col-md-8 col-md-offset-2">
<form action="{{action('casasController#store')}}" method="POST">
<input type="hidden" name="_token" value="{{csrf_token()}}"/>
<div class="form-group">
<label for="nome">Nome</label>
<input type="text" class="form-control" id="nome" name="nome" placeholder="Nome">
</div>
<div class="row">
<div class="col-md-8">
<div class="form-group">
<label for="categoria">Categoria</label>
<select class="form-control" name="categoria">
<option value="null">Scegli...</option>
#foreach($categoriasSelect as $categoriaSelect)
<option>{{$categoriaSelect->nome}}</option>
#endforeach
</select>
</div>
</div>
<div class="col-md-4">
<label>Aggiungi nuova categoria</label>
<button type="button" class="btn btn-warning btn-block" data-toggle="modal" data-target="#modalCateg">Aggiungi</button>
</div>
</div>
<div class="form-group">
<label for="descrizione">Descrizione</label>
<textarea type="text" class="form-control" id="descrizione" name="descrizione" placeholder="Descrizione"></textarea>
</div>
<input type="submit" class="btn btn-primary btn-block" value="Salva">
</form>
</div>
</div>
#stop

Answer 1

Ok, you don't have Oggetto model, so you need to create it first.
Also change this:
$oggetto = new Oggetto;
to this:
$oggetto = new Oggetto();