I have been trying to make it work by changing the names of the section and trying to find out why it doesn’t work but I have no clue why it doesn’t send me to the section I want. It’s on the “Productos” page, the home works fine.
I haven’t checked your preview yet, but in your case you don’t want to change the section names, but instead (under settings) give the sections a unique ID. Then link your scroll menu item to ‘a section in this page’ (also under ‘settings’) where you can find the ID you’ve just added.