Issue with Sort Extension

[epimediaestudio]

Hi there, I recent discover your amazing library and im doing a table filtering in my site but I can't make the sort extension work as your examples.

The sort are visible as inputs and I cannot integrate with the headers of the table.

You can see the example here: https://www.lareinacorrientes.com.ar/interfaz-sandwichs/

Can you give me some hand? Thanks