[Resuelto] This issue isnt solved: This page is set to be translated manually using the WordPress Editor.

Background of the issue:
I am trying to translate a page manually using the WordPress Editor on my site enlace oculto. I have set the settings as instructed, but I am facing an issue.

Symptoms:
I can't add the products to the translation list.

Questions:
Why can't I add the products to the translation list despite setting the settings as instructed?
Is there a specific step I might be missing in WPML -> Settings -> Post Type settings or Translation mode?