Admin Login redirecting back to Admin Login page.

[HoodLegend]

I followed dev marketers tutorial to implement multiple authentication in my Laravel app. However, when i try to login as an admin it stays on the admin login page and does not go to the target page. Can someone assist on how i can gp about this issue,

The following are the is my admin controller
``<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Auth;
use Illuminate\Foundation\Auth\AuthenticatesUsers;

class AdminLoginController extends Controller
{

use AuthenticatesUsers;

public function __construct() {
  $this->middleware('guest:admin')->except('logout'); 
}


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

public function login(Request $request) {
  // validate the form data here
  $this->validate($request, [
    'email' => 'required|email',
    'password' => 'required|min:8'
  ]);

  // Attempt to log the user in
if (Auth::guard('admin')->attempt(['email' => $request->email, 'password' => $request->password], $request->remember)) {
  // if successful, then redirect to their intended location
  return redirect()->intended(route('admin.dashboard'));
}

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

}

}
``

and this is my route that consists of the admin related views
`` Route::prefix('admin')->group(function() {

Route::get('/login', 'App\Http\Controllers\Auth\AdminLoginController@showLoginForm')->name('admin.login');

Route::post('/login', 'App\Http\Controllers\Auth\AdminLoginController@login')->name('admin.login.submit');

Route::get('/', 'App\Http\Controllers\AdminController@index')->name('admin.dashboard');;

Route::get('/{id}/',[CarsController::class, 'getCar'] )->where('id', '[0-9]+')->middleware('auth:admin');;

Route::get('/cars',[CarsController::class, 'getCars'])->middleware('auth:admin')->name('admin.cars');;;

Route::get('/create-car/',[CarsController::class, 'createCar'] )->middleware('auth:admin')->name('admin.cars');;;

Route::post('/store-car/',[CarsController::class, 'storeCar'])->middleware('auth:admin');;;

Route::get('/{id}/edit',[CarsController::class, 'editCar'])->where('id', '[0-9]+')->middleware('auth:admin');;;

Route::post('/cars/edit-car/{id}',[CarsController::class, 'storeEditedCar'])->where('id', '[0-9]+')->middleware('auth:admin');;;

});``