[Résolu] translatetion icon loading endlessly

Background of the issue:
I deleted the German page because the layout was different from the original language. Now, I am trying to translate the page again. The translations appear in the WPML editor, but in the WordPress dashboard, the translation in progress icon loads endlessly. Here is the link to the page where the issue can be seen: lien caché

Symptoms:
The translation icon is loading endlessly instead of showing the pencil icon.

Questions:
Why is the translation icon loading endlessly in the WordPress dashboard?
How can I resolve the issue of the translation icon not updating to the pencil icon?