Mail not sent after completing Ravel 5.2 form

<?php namespace App\Http\Controllers;

useApp\Http\Requests;
useApp\Http\Controllers\Controllers;

use Illuminate\Http\Request;
use Illuminate\Contracts\Mail\Mailer;

use Illuminate\Mail\Message;

use Session;



class ContactController extensions Controller
{
    /*
    |--------------------------------------------------------------------------
    | Welcome Controller
    |--------------------------------------------------------------------------
    |
    | This controller is designed to create a marketing page for the application.
    | Rendered and configured to appear only to guests.
    | As with other controller samples, change or delete whatever you want.
    |
    */

    /**
     * Creating a New Controller Instance
     */
    public function__construct()
    {
        #$this->middleware('guest');
    }

    /**
     * Show application welcome page to user
     * Non-login TOP Page
     * @parambool | false$open
     * @return$this
     */


    /**
     * Contact Us Form
     */
    public function getIndex(Request$request)
    {
        // $test = Session::get('set_category');
        $test1 = Session::get('set_category1');

        $test2 = $request->session()->get('set_category2');

        return view('contact.index');
    }

    /**
     * confirmation process
     */
    public function postConfirm(Request$request)
    {
        $this->validate($request,[
            'locations' = > 'required',
            'situation' = > 'required',
            'generation' = > 'required',
            'name' = > 'required',
            'prefectures' = > 'required',
            'movein' = > 'required',
            'tel' = > 'required | numeric',
            'return' = > 'required',
            'time' = > 'required',


        ]);
        \Session::flash("request", $request->all());
        return redirect('contact/confirm');
    }

    /**
     * confirmation page
     */
    public function getConfirm()
    {
        if(!\Session::has('request')){
            return redirect('contact');
        }
        $request=\Session::get('request');
        \Session::keep(['request']);

        return view('contact.confirm',$request);
    }

    /**
     * mail transmission processing
     * Todo:add mail destination to settings
     */
    public function postSend(Request$request)
    {
        $this->validate($request,[
            'locations' = > 'required',
            'situation' = > 'required',
            'generation' = > 'required',
            'generation' = > 'required',
            'name' = > 'required',
            'prefectures' = > 'required',
            'movein' = > 'required',
            'tel' = > 'required | numeric',
            'return' = > 'required',
            'time' = > 'required',

        ]);

        $data = $request->all();
        \Session::flash("request", $data);

        \Mail::send('emails.contact', $data, function($message)use($data)
        {
            $message->from($data['email'], $data['name']);
            $message->to('sample@〇 ..jp', ' 〇 サポート Support Center') ->subject('[]Contact Us Form');
        });
        return redirect('contact/send');
    }

    /**
     * Submission Completion Page
     */
    public function getSend()
    {
        return view('contact.send');
    }

}