You are seeing this error because controller Offerte-specialiController could not be found.
Notice: If you want to customize this error message, create app/views/errors/missing_controller.thtml.
Fatal: Create the class below in file : app/controllers/offerte-speciali_controller.php
<?php
class Offerte-specialiController extends AppController {
var $name = 'Offerte-speciali';
}
?>