WooCommerce Products “Sort by” function not working

Hi,

I’m having trouble making the product ‘sort by’-function on my products page to work.
It’s a predesigned template I’m working with and I’m aware it’s WooCommerce functions being limited to some degree but at the same time it seems that some other alterations (like changing the ‘sale’ button) actually do work with this template.
Could it be I’m running WooCommerce 3.3.3 that this order-function is messed up? The template status page gives this message: ViddyozeStoreTheme/woocommerce/loop/orderby.php versie 2.2.0 is outdated. The head-version is 3.3.0.
Problem is though, that strangely enough updating to the latest WC version, it messes up my mouse-over video-player function, so that’s not an option for me. Anyone willing to take a look and advise me on how to fix this orderby.php issue with my current set-up? I’ve already tried disabling all WooCommerce related plugins, but the problem still persists.

The page I need help with: [log in to see the link]