Laravel 504 Gateway Time-outが出てしまう

<?php

use Illuminate\Support\Facades\Route;
use App\Http\Controllers\Auth\AuthController;
use App\Http\Controllers\Admin\AdminController;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/', function () {
    return view('home/top');
});

Auth::routes();

//新規作成後マイページ
Route::get('home', [App\Http\Controllers\HomeController::class, 'index'])->name('home');

// プロフィール編集
Route::get('edit',[App\Http\Controllers\HomeController::class. 'edit'])->name('edit');

Route::group(['prefix' => 'admin'], function() {
    // ログイン画面
    Route::get('login', [App\Http\Controllers\Admin\LoginController::class, 'showLoginForm'])->name('admin.login');
    // ログイン処理
    Route::post('loginLogin', [App\Http\Controllers\Admin\LoginController::class, 'loginLogin'])->name('loginLogin');
    // その後の遷移(ログイン後)
    Route::get('adminHome', [App\Http\Controllers\Admin\HomeController::class, 'adminHome'])->name('adminHome');
});

Route::group(['prefix' => 'admin', 'middleware' => 'auth:admin'], function() {
    Route::post('logout',   'Admin\LoginController@logout')->name('admin.logout');
    
});
    

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Providers\RouteServiceProvider;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;


class LoginController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles authenticating users for the application and
    | redirecting them to your home screen. The controller uses a trait
    | to conveniently provide its functionality to your applications.
    |
    */

    use AuthenticatesUsers;

    /**
     * Where to redirect users after login.
     *
     * @var string
     */
    // protected $redirectTo = RouteServiceProvider::HOME;
    protected $redirectTo = '/admin/home';

    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest:admin')->except('logout');
        
    }

    // adminログインページ
    public function showLoginForm()
    {
        return view('admin.login'); 
    }

    //adminログイン処理
    public function loginLogin(Request $request)
    {
        $credentials = $request->only(['email', 'password']);

        if (Auth::guard('admin')->attempt($credentials)) {
            return redirect()->route('adminHome')->with([
                'login_msg' => 'ログインしました。',
            ]);
        }
        return back()->withErrors([
            'login' => ['ログインに失敗しました'],
        ]);
     }
    // public function login(Request $request)
    // {
    //     $this->validate($request, [
    //     'email' => 'email|required',
    //     'password' => 'required|min:4'
    //     ]);
    //     if (Auth::attempt(['email' => $request->input('email'), 'password' => $request->input('password')])) {
    //         return redirect()->route('admin.index');
    //     }
    //         return back()->withErrors([
    //         'login' => 'メールアドレスかパスワードが間違っています.',
    //         ]);
    // }

    protected function guard()
    {
        return Auth::guard('admin');  //変更
    }
    
}

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Authentication Defaults
    |--------------------------------------------------------------------------
    |
    | This option controls the default authentication "guard" and password
    | reset options for your application. You may change these defaults
    | as required, but they're a perfect start for most applications.
    |
    */

    'defaults' => [
        // 'guard' => 'web',
        'guard' => 'user',
        'passwords' => 'users',
    ],

    /*
    |--------------------------------------------------------------------------
    | Authentication Guards
    |--------------------------------------------------------------------------
    |
    | Next, you may define every authentication guard for your application.
    | Of course, a great default configuration has been defined for you
    | here which uses session storage and the Eloquent user provider.
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | Supported: "session"
    |
    */

    'guards' => [
        'web' => [
            'driver' => 'session',
            'provider' => 'users',
        ],

        'api' => [
            'driver' => 'token',
            'provider' => 'users',
        ],
        'user' => [
            'driver' => 'session',
            'provider' => 'users',
        ],
        'admin' => [ //追加
            'driver' => 'session', //追加
            'provider' => 'admins', //追加
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | User Providers
    |--------------------------------------------------------------------------
    |
    | All authentication drivers have a user provider. This defines how the
    | users are actually retrieved out of your database or other storage
    | mechanisms used by this application to persist your user's data.
    |
    | If you have multiple user tables or models you may configure multiple
    | sources which represent each model / table. These sources may then
    | be assigned to any extra authentication guards you have defined.
    |
    | Supported: "database", "eloquent"
    |
    */

    'providers' => [
        'users' => [
            'driver' => 'eloquent',
            'model' => App\Models\User::class,
        ],
        'admins' => [
            'driver' => 'eloquent',
            'model' => App\Models\Admin::class,
        ],

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

    /*
    |--------------------------------------------------------------------------
    | Resetting Passwords
    |--------------------------------------------------------------------------
    |
    | You may specify multiple password reset configurations if you have more
    | than one user table or model in the application and you want to have
    | separate password reset settings based on the specific user types.
    |
    | The expire time is the number of minutes that each reset token will be
    | considered valid. This security feature keeps tokens short-lived so
    | they have less time to be guessed. You may change this as needed.
    |
    */

    'passwords' => [
        'users' => [
            'provider' => 'users',
            'table' => 'password_resets',
            'expire' => 60,
            'throttle' => 60,
        ],
        'admin' =>[
            'provider' => 'admin',
            'table' => 'password_resets',
            'expire' => 60,
            'throttle' => 60,
        ]
    ],

    /*
    |--------------------------------------------------------------------------
    | Password Confirmation Timeout
    |--------------------------------------------------------------------------
    |
    | Here you may define the amount of seconds before a password confirmation
    | times out and the user is prompted to re-enter their password via the
    | confirmation screen. By default, the timeout lasts for three hours.
    |
    */

    'password_timeout' => 10800,

];

public function loginLogin(Request $request)
    {
        $credentials = $request->only(['email', 'password']);

        if (Auth::guard('admin')->attempt($credentials)) {
            return redirect()->route('adminHome')->with([
                'login_msg' => 'ログインしました。',
            ]);
        }
        return back()->withErrors([
            'login' => ['ログインに失敗しました'],
        ]);
     }