Hello,
I have two questions. Why does not show the category block in left bar  when you’re inside a product? In the category page works well: http://www.starstickvinilos.com/es/24-basicos-

Not in product page: http://www.starstickvinilos.com/es/vinilos-de-mariposas/371-mariposas-suaves-nina-vinilo-infantil-de-pared.html

Other question I bought a cache module: http://addons.prestashop.com/es/7939-page-cache-v3.html

But it does not work because the web constantly keeps the loading spinner. They told me this:
Hello,

The spinner is displayed Because there is a background request to refresh dynamic modules. In my review you shouldnt Display this kind of visitor Because spinner Have to wait Until everything is downloaded That Means Past Images that are not displayed (bottom of the page). Browsers are optimized to doanload first visible elements so the page Seems to be fast; esta breaking spinner is your advantage.

Regards

You can turn off the spinner?
thank you very much