It isn’t a plugin it’s a template made with with this base template:
https://320press.com/wpbs/
And the plug-in works great in the footer menu, just doesn’t work in the principal menu.
and another strange thing it’s that if I repeat a class like “icon-home” in two menu elements, it doesn’t display any of the two it the top menu, but in the footer links it’s all ok, I’ve made a online version of the site:
https://empresariosjovenesyemprendedores.com/
I’ll let the plugin active with two elements in the menu with the class “icon-home” so you can see what I’m talking about