login guard not work , back me again to login

don't know why can't login ca't connect to table maybe . and back me again to login page. rout.php

*/
Route::group(['namespace'=>'Admin','prefix'=>'admin','middleware'=>'auth'],function (){
    Route::get('dashboard',[DashboardController::class,'index'])->name('admin.dashboard');
    Route::get('logout',function (){
        auth()->logout();
    });
});



Route::group(['namespace'=>'Admin','prefix'=>'admin','middleware'=>'guest'],function (){
        Route::get('login',[LoginController::class,'show'])->name('admin.loginView');
        Route::POST('check/login',[LoginController::class,'adminLogin'])->name('admin.login');
});

auth.php

<?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',
        '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',
        ],

        'admin' => [
            'driver' => 'session',
            'provider' => 'admins',
        ],
    ],

    /*
    |--------------------------------------------------------------------------
    | 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,
        ],

        'admins' => [
            'provider' => 'admins',
            '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,

];

Model

<?php

namespace App\Models;

use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Admin extends Authenticatable
{
    use HasFactory;

    protected $guard = "admin";

    protected $table ='admins';


    protected $fillable = [
        'name',
        'email',
        'user_name',
        'added_by',
        'updated_by',
        'com_code',
        'photo',
        'created_at',
        'updated_at',
    ];

    protected $hidden = [
        'password',
        'remember_token',
    ];
}

Controller

<?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use App\Http\Requests\LoginRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Http\Request;

class LoginController extends Controller
{



   public function show(){
        return view('admin.auth.login');
    }

   public function adminLogin(LoginRequest $request){


       if (Auth::guard('admin')->attempt($request->only(['email','password']))){
//           dd($request);
           return redirect()->route('admin.dashboard');
       }

       return back()->withInput($request->only('email', 'remember'));
   }
}

when i try dd(); read all input form right , why back me to login i don't know.

middlewear

class Authenticate extends Middleware
{
    /**
     * Get the path the user should be redirected to when they are not authenticated.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return string|null
     */
    protected function redirectTo($request)
    {
        if (! $request->expectsJson()) {
            return route('admin.loginView');
        }
    }
}

thank for help