[Chiuso] Missing translation for a product

Background of the issue:
I am trying to ensure all products are translated on the category page: link nascosto. However, there is one product that appears untranslated, and the link associated with it is invalid. In the admin panel, I can see the translated product correctly.

Symptoms:
One product is not translated and has a wrong or non-existing link on the category page.

Questions:
Why is one product not appearing translated on the category page?
Why does the product have an invalid link? How to repair it?