Hi i'm trying download all .pdf stored in a website directory, you can open
each one if you know the name like:

<https://alojamientos.uva.es/guia_docente/uploads/2012/455/42617/1/Documento51.pdf>

It's possible to download all documents in this folder "guia_docente" and his
subsfolders?
I have error always, I don't know whay, someone can help me plase?
PD: sorry for my bad english