Cannot translate some WooCommerce parts

Hey guys.

I used Loco Translate to translate some parts of the website after changing site language from English to Dutch, and updating it via Dashboard – Updates. However, the translation automatically reverted back and I cannot find some strings such as ‘Additional Information’ (product tab), ‘Update cart’ or ‘Proceed to checkout’ buttons in cart/checkout.

Could you please help me with this issue.

Thank you.

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