registration,login loop laravel

Guys I'm working with laravel authentification system and yesterday everything was ok today when I tried to register a new user it loads the register page again!!

RegisterController.php

namespace App\Http\Controllers\Auth;

   use App\User;
      use App\Http\Controllers\Controller;
      use Illuminate\Support\Facades\Validator;
       use Illuminate\Foundation\Auth\RegistersUsers;


    class RegisterController extends Controller
    {
use RegistersUsers;


protected $redirectTo = '/home';


public function __construct()
{
    $this->middleware('guest');
}


protected function validator(array $data)
{
    return Validator::make($data, [
        'name' => 'required|string|max:255',
        'email' => 'required|string|email|max:255|unique:users',
        'password' => 'required|string|min:2|confirmed',
         'tel' => 'required|string|min:8',
        'ville' => 'required|string|max:255',


    ]);
}


protected function create(array $data)
{
    return User::create([
        'name' => $data['name'],
        'email' => $data['email'],
        'password' => bcrypt($data['password']),
        'tel' => $data['tel'],
        'ville' => $data['ville'],

    ]);
}





       }

Register.blade.php

register.blade.php

Routes :

The routes

via Chebli Mohamed