Products photo disappeared after update

Hi Kriesi team,

I have updated Enfold theme and I think also updated WooCommerce.
After that, product photos on product pages are disappeared. I still can see them on the shop page.

Shop page (OK): https://fabrikaznanja.rs/onlajn-prodavnica-fabrika-znanja/
Product pages (photos not showing): https://fabrikaznanja.rs/product/3d-max-model-podna-lampa-3d-max-kurs/

Could you please help me to find what happened?

Thanks.

Milorad Tunić