The update for ‘Hyyan WooCommerce Polylang Integration’ just came out and it solved the problem.
Yes, I did updated the plugins, but I’m not sure when this started happening. My first problem was woocommerce 3, which was not fully translated in Slovenian language and I had to use Loco translate. But now it is fully translated and I even deactivated Loco to see if this is the problem. I don’t know how Enfold template is putting the sections together and why would only this two section be the problem (mini cart and your order section). The Your Order section is just one part of the check out page, the rest of the page is shown correctly in the chosen language.