[Gelöst] string translation

Background of the issue:
I am trying to ensure that a button link points to the correct translated URL on my website. The issue can be seen on this page: versteckter Link.

Symptoms:
The button currently points to the English link instead of the expected translated URL.

Questions:
Why does the button link not point to the translated URL?
How can I fix the button link to ensure it points to the correct translated form?