Laravel Authentication don´t work

I'm trying to make a login with laravel however, when I use Auth :: Attempt ........ always return false. I have reviewed the code several times, but still can not find the error. could guide me please ?? thanks :)

Model:

<?php

namespace AppModels;

use IlluminateAuthAuthenticatable;
use IlluminateDatabaseEloquentModel;
use IlluminateAuthPasswordsCanResetPassword;
use IlluminateContractsAuthAuthenticatable as AuthenticatableContract;
use IlluminateContractsAuthCanResetPassword as CanResetPasswordContract;


class Users extends Model implements AuthenticatableContract, CanResetPasswordContract
{

    use Authenticatable, CanResetPassword;

    protected $table = 'users';

}

controller:

<?php

namespace AppHttpControllers;

use IlluminateSupportFacadesAuth;
use IlluminateHttpRequest;
use Validator;
use AppHttpControllersController;
use AppHttpRequests;
use AppModelsUsers as user;


class UserController extends Controller
{
    public function PreLogin(Request $request){

        $validator = Validator::make($request->all(),[
            'EmailLogin' => 'require|email',
            'PasswordLogin' => 'require|min:6'
        ]);

        if($validator->fails()){

            return response()->json([
                'success' => false,
                'error' => $validator->errors()->toArray()
            ]);
        }else{

            return $this->Login($request);
        }

    }

    private function Login(Request $request){

        if(Auth::attempt(['email' => $request->EmailLogin, 'password' => $request->PasswordLogin])){
            return response()->json([
                'success' => true
            ]);
        }else{
            return response()->json([
                'success' => false,
                'error' => 'not login'
            ]);

        }

    }
}

auth.php:

'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => AppModelsUsers::class,
        ],

//         'users' => [
//             'driver' => 'database',
//             'table' => 'users',
//         ],
    ],