title: Auth::guard('admin')->user() returns NULL
body: <p>My project is working fine on local server but when I deploy it to the production server my middleware is not working I'm using Guard to restrict authenticated user to access the pages but when I put my routes inside the group middleware It always return Unauthenticated...
  Tried a lot of solution found online but nothing is useful so far...</p>
  <pre><code>Route::middleware(['auth:admin'])-&gt;group(function () {
  
  Route::get('notifications',Notifications::class);
  </code></pre>
  <p>});</p>
  <pre><code>       'web' =&gt; [
             'driver' =&gt; 'session',
             'provider' =&gt; 'users',
         ],
         'admin' =&gt; [
             'driver' =&gt; 'session',
             'provider' =&gt; 'admins',
         ],
       
     ],```
  
  </code></pre>