After some testing, I think I’ve found the problem.
WooCommerce Domination adds a couple of additional separators to the menu. Normally, it then rearranges the menu items and moves those separators to different locations. When Admin menu Editor is active that doesn’t happen because the menu editor takes control of the menu order and prevents WooCommerce Domination from moving things around. As a result, you end up with a menu that contains multiple separators one after another. This looks like a large gap between menus.
Here’s what I would recommend: go to the menu editor, find the “Pedidos” menu, then look for a bunch of grey boxes above that menu. Those are menu separators. Delete all of those separators except one.