Search result sorting.

Hello.

We have problem with search results. On live demo we see that in search results sorting filter is working like a charm, but on our site when we search for travel we get to search results – which is fine, but when we are changing sorting options, then it is reloading page and giving “No tours were found matching your selection.”. On your live demo it is working how it should be.
Also tried clean wordpress install, with newest theme and woocommerce. Imported demo and result is the same(localhost) http://prntscr.com/pw9mxr

Mabye there is extra configuration for search or there is some error in theme. Can you guys help sort this problem out?

Hope for soon reply,
Ivars.