[تم الحل] WooCommerce order page elements not translate

Background of the issue:
On the Order page (after login and after you click BILLING & SHIPPING button on Cart page, with product added to cart), some headings and buttons are not translated.
Text for this headings and buttons is set from: Appercance -> Customizer -> WooCommerce -> Order
I have already tried to switch to parent Astra theme, turn off plugins, looked for string translations, scanned frontend etc.
الرابط المخفي
Also no translation for coupons text on Cart and Order pages. Text is set by Appercance -> Customizer -> WooCommerce -> Misc
الرابط المخفي

Symptoms:
Some headings and buttons on the Order page are not translated. Also same problem with coupon text.

Questions:
How to add translations for missing elements?
Could you log into website and just check the problem?