[Résolu] Stuck translation caused 503 error in German version of site

Background of the issue:
I was trying to translate the Elementor Footer, but it got stuck on saving. Since that moment, the site is only available in English and not in German. The English version works fine at lien caché, but the German version at lien caché is not working and our company is based in Germany.

Symptoms:
The translation got stuck and caused a 503 error when accessing any page in German.

Questions:
Why did the translation get stuck while saving?
How can I resolve the 503 error on the German version of the site?
How can I ensure the site is available in both English and German?