Laravel 7X admin/login loops back to admin/login despite correct credentials – Phpmyadmin

I am working on a Laravel admin panel that loops back to admin panel when i input the crenditials. The goal is to navigate to th edashboard. Laravel vrsion is 7x. I am working on it from the localhost/xampp. I double checked the database connection in the relevant files, env, database.db. it marches the database in phpmyadmn. Thank you in advance for the suggestions

N/B It has no error to trace

routes/admin.php

<?php
Route::group(['prefix'  =>  'admin'], function () {

    Route::get('login', 'AdminLoginController@showLoginForm')->name('admin.login');
    Route::post('login', 'AdminLoginController@login')->name('admin.login.post');
    Route::get('logout', 'AdminLoginController@logout')->name('admin.logout');

    Route::group(['middleware' => ['auth:admin']], function () {

    Route::get('/', function () {
        return view('admin.dashboard.index');
    })->name('admin.dashboard');

});
});

appHttpControllersAdminLoginContoller.php

<?php

namespace AppHttpControllersAdmin;

use IlluminateHttpRequest;
use AppHttpControllersController;
use IlluminateFoundationAuthAuthenticatesUsers;
use Auth;


class LoginController extends Controller
{
    use AuthenticatesUsers;

    /**
     * Where to redirect admins after login.
     *
     * @var string
     */
    protected $redirectTo = '/admin';

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

    /**
     * @return IlluminateContractsViewFactory|IlluminateViewView
     */
    public function showLoginForm()
    {
        return view('admin.auth.login');
    }

    /**
 * @param Request $request
 * @return IlluminateHttpRedirectResponse
 * @throws IlluminateValidationValidationException
 */
public function login(Request $request)
{
    $this->validate($request, [
        'email'   => 'required|email',
        'password' => 'required|min:6'
    ]);
    if (Auth::guard('admin')->attempt([
        'email' => $request->email,
        'password' => $request->password
    ], $request->get('remember'))) {
        return redirect()->intended(route('admin.dashboard'));
    }
    return back()->withInput($request->only('email', 'remember'));

}

/**
 * @param Request $request
 * @return IlluminateContractsViewFactory|IlluminateViewView
 */

public function logout(Request $request)
{
    Auth::guard('admin')->logout();
    $request->session()->invalidate();
    return redirect()->route('admin.login');
}
}

appExceptionsHandler.php

<?php

namespace AppExceptions;

Use IlluminateSupportArr;
use IlluminateFoundationExceptionsHandler as ExceptionHandler;
use Throwable;
use IlluminateAuthAuthenticationException;

class Handler extends ExceptionHandler
{
    /**
     * A list of the exception types that are not reported.
     *
     * @var array
     */
    protected $dontReport = [
        //
    ];

    /**
     * A list of the inputs that are never flashed for validation exceptions.
     *
     * @var array
     */
    protected $dontFlash = [
        'password',
        'password_confirmation',
    ];

    /**
     * Report or log an exception.
     *
     * @param  Throwable  $exception
     * @return void
     *
     * @throws Exception
     */
    public function report(Throwable $exception)
    {
        parent::report($exception);
    }

    /**
     * Render an exception into an HTTP response.
     *
     * @param  IlluminateHttpRequest  $request
     * @param  Throwable  $exception
     * @return SymfonyComponentHttpFoundationResponse
     *
     * @throws Throwable
     */
    public function render($request, Throwable $exception)
    {
        return parent::render($request, $exception);
    }

    /**
 * @param IlluminateHttpRequest $request
 * @param AuthenticationException $exception
 * @return IlluminateHttpJsonResponse|IlluminateHttpRedirectResponse|SymfonyComponentHttpFoundationResponse
 */
    protected function unauthenticated($request, AuthenticationException $exception)
    {
        if ($request->expectsJson()) {
            return response()->json(['message' => $exception->getMessage()], 401);
        }
        $guard = Arr::get($exception->guards(), 0);
        switch($guard){
            case 'admin':
            $login = 'admin.login';
            break;
            default:
            $login = 'login';
            break;
        }
        return redirect()->guest(route($login));
    }
}

appHttpMiddlewareRedirectAuthenticated.php

<?php

namespace AppHttpMiddleware;

use AppProvidersRouteServiceProvider;
use Closure;
use IlluminateSupportFacadesAuth;

class RedirectIfAuthenticated
{
   /**
 * Handle an incoming request.
 *
 * @param  IlluminateHttpRequest  $request
 * @param  Closure  $next
 * @param  string|null  $guard
 * @return mixed
 */
public function handle($request, Closure $next, $guard = null)
{
    switch($guard){
        case 'admin':
            if (Auth::guard($guard)->check()) {
                return redirect('/admin');
            }
            break;
        default:
            if (Auth::guard($guard)->check()) {
                return redirect('/');
            }
            break;
    }
    return $next($request);
}
}

routes/web.php

<?php

use IlluminateSupportFacadesRoute;
require 'admin.php';

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| 
|
*/

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


Auth::routes();

Route::get('/home', 'HomeController@index')->name('home');

.env

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=sarliam-shop
DB_USERNAME=root
DB_PASSWORD=''

database.php

 'mysql' => [
            'driver' => 'mysql',
            'url' => env('DATABASE_URL'),
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'sarliam-shop'),
            'username' => env('DB_USERNAME', 'root'),
            'password' => env('DB_PASSWORD', ''),
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8mb4',
            'collation' => 'utf8mb4_unicode_ci',
            'prefix' => '',
            'prefix_indexes' => true,
            'strict' => true,
            'engine' => null,
            'options' => extension_loaded('pdo_mysql') ? array_filter([
                PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            ]) : [],
        ],