This thread is resolved. Here is a description of the problem and solution.
Problem: 1. Want to change default language to German.
2. I am trying to translate the string "Item" shown within the cart.
1. I have changed your site default language English to German from WPML >> Languages >> Site Languages and now German language is opening in this URL: https://forever-young.rostalis.de and English language will open with this URL: https://forever-young.rostalis.de/en/
2. For “Item” text translation, I have thoroughly debug this issue, WPML is translating and showing translated text successfully on frontend, but there are some JS code coming from theme that changing translated text to english text as you can see in attached screenshot.
I recommend to please ask Kingdom theme author so they can advise you on latest compatibility of their theme and WPML, may be they have fix for it.
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