Submenu not working ...

[CarloG]

Hi everyone and thanks for you answers, as always !
I have a new issue regarding the HOME button on an abantecart e-commerce website.
My customer asked me, times ago, to have only the HOME button, and you helped me getting rid of the standard dropodown with coding the page
category_top.tpl.

Now he asked to put the Privacy Policy and other pages in the dropdown again.
So I did take the code I commented on category_top.tpl :

<ul id="main_menu" class="nav">
                   <?php
                   $storefront_menu = (array)$this->session->data['storefront_menu'];
                   foreach ($storefront_menu as $i => $menu_item) {
                      if ($menu_item['id'] == 'home') {
                         unset($storefront_menu[$i]);
                         break;
                      }
                   }?>
                   <!-- Top Nav Start -->
                   <?php echo  buildStoreFrontMenuTree($storefront_menu); ?>
                </ul>

and uncommented that.
,
The dropdown menu appeared again, but as I did not change anything in the administration section of menu,
I'd expect the dropdown appear with all the standard voices.
Instead of it, I have only a blank line, as if there are no submenu items in the admin section.

Can you help me solve this issue, please ?

Thank you.

CarloG