CI4: Code Module is showing 404 in live server (cPanel)

I've added the module folder in ...\app\Config\Autoload.php

PHP Code:

public $psr4 = [
          APP_NAMESPACE => APPPATH, // For custom app namespace
          'Config'      => APPPATH . 'Config',
          'Blog'      => ROOTPATH . 'example/Blog',
]; 


My directory:

Code:

/Home directory of main project folder
/example
    /Blog
        /Config
            /Routes.php
       /Controllers           
           /Blog.php

Routes.php

PHP Code:

namespace Config;

// Create a new instance of our RouteCollection class.
$routes = Services::routes();

$routes->get('blog', 'blog::index', ['namespace' => 'Blog\Controllers']); 


Blog.php

PHP Code:

namespace Blog\Controllers;

class Blog extends \CodeIgniter\Controller {

    function index() { 
        echo "Code module";
    }

} 


After running my_domain/index.php/blog, it's showing this error:

Code:

404 - File Not Found

Controller or its method is not found: \Blog\Controllers\blog::index

But it's working fine in my localhost server.