[Woocommerce] Woocommerce Shop Page Template

https://www.fondazionechiro.it/negozio/
Why I cant put the sidebar on the same row of products list in the shop page? Also in the categories pages the sidebar is always too deep down.
I tried to edit archive-product.php but looks like it isn't overwritten in child theme dir.
I start thinking it could be a woocommerce issue, related to the plugin (standalone) installed and the bulk plugin I can find in the educationpress theme dir.

I noticed that <div id="secondary" class="widget-area col-xs-12 col-sm-4"> is INSIDE the <main> and if I put it OUTSIDE the <\main> it works fine. But I cannot do that!

Please help me.

V