Problem when upload to shared hosting

Hi, All.
i have a problem, my CI4 project run perfectly in localhost but when i upload to shared hosting (cpanel) (because this my 1st time upload ci to live server), it cannot open my site with feature routeadd like this.

in my Router.php

Code:

$routes->add('/', 'Auth::index');
$routes->add('admin', 'Admin::index');

in my controller

Code:

if ($user['role_id'] == 1) {
                        $this->response->redirect(base_url('admin'));
                    }

my screenshot



please share me a references or keyword to fix this

sorry, solved with change route add with route get

sorry, solved with change route add with route get

I'm getting same issue, Can you please explain further more, how you solve this issue.