Hi,

We are very sorry for the late respond

We check your site but the button Scoll to top still works fine

If you want to scroll in a specific page, see your menu Manutenção e Limpeza in Megamenu setting

In your page, there must be a region, of which ID is href. This ID is the ID in megamenu
and you have to add class scroll-down smooth-scroll for that menu item

Please note that it is scroll one page and not redirect link