Megamenu deleted – I can't access to Appearence > Menu

Hi:

I had a megamenu and its spanish translation with WPML. I just want to rebuild it, so i press “Delete menu” button in Appearence – Menu section.

After I delete, I can’t access to this wordpress section. The rest of WP works fine. The path is:

(my web)/wp-admin/nav-menus.php?menu=0&lang=

After a while, firefox says:

“The page is not redirecting properly. Firefox has detected that the server is redirecting the request for this address in a way that will never end. This problem is sometimes caused by disabling or refuse to accept cookies.”

Browsing the site, in the nav header appears Home link (I had removed it) and doesn’t appear the WPML language switch (through the WPML support, I obtained the code for put it there like any other link and this snippet still is in my child theme function.php).

function new_nav_menu_items($items,$args) {
if (function_exists(‘icl_get_languages’)) {
$languages = icl_get_languages(‘skip_missing=0’);
if(1 < count($languages)){
foreach($languages as $l){
if(!$l[‘active’]){
$items = $items.'<li class=”menu-item”> ‘.$l[‘native_name’].’‘;
}
}
}
}
return $items;
}
add_filter( ‘wp_nav_menu_items’, ‘new_nav_menu_items’,10,2 );

How can i recovery the access again to menu section in order to redo the megamenu and the WPML language switch?

Thanks