my laravel sub-domain urls does not work except homepage

I am new to hosting web apps online. I wanted to host an app in my subdomain eg departmennt1.example.com. I added the subdomain in cPanel. Located its directory in file manager. It happens that the subdmain is also a folder in the root directory. I upload the locally working site in the subdomain folder. After setting up my database on the .env folder. I also ensure that my public folder files were inside the subdomain folder. I ensure that the app and the autoload.php in index.php file in the subdomain folder is pointing correctly to the vendor and boostrap folder.

After that, I tried loading the subdomain address in the browser, but only the index page ie.

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

any other URL will return like login will show

Not Found

The requested URL was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

I tried it on another hosting company where the subdomain by default resides in the public_html directory and everything worked out fine.

How can I host at the first hosting company?

# php -- BEGIN cPanel-generated handler, do not edit
# Set the “ea-php72” package as the default “PHP” programming language.
<IfModule mime_module>
  AddHandler application/x-httpd-ea-php72 .php .php7 .phtml
</IfModule>
# php -- END cPanel-generated handler, do not edit

<IfModule mod_rewrite.c>
    <IfModule mod_negotiation.c>
        Options -MultiViews -Indexes
    </IfModule>

    RewriteEngine On

    # Handle Authorization Header
    RewriteCond %{HTTP:Authorization} .
    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

    # Redirect Trailing Slashes If Not A Folder...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_URI} (.+)/$
    RewriteRule ^ %1 [L,R=301]

    # Handle Front Controller...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ index.php [L]
</IfModule>