[تم الحل] string translation issue

Background of the issue:
I'm unable to translate the string "In Stock" into different languages. I've tried using the string translation feature in WPML, but the translation is not displaying on the frontend. The site is currently under development.

Symptoms:
The translation for the string "In Stock" is not displaying on the frontend despite using the string translation feature in WPML.

Questions:
How can I translate the string "In Stock" into different languages using WPML?
Why is the translation for the string "In Stock" not displaying on the frontend?