[Closed] Translations not saving or completing

Background of the issue:
I am trying to translate blog posts, WooCommerce products, and sections on the Home page. The issue can be seen at hidden link.

Symptoms:
Translations are not saving or completing. When translations are completed, the pencil icon should appear, but it shows the gear icon instead. The permalink and title are not adjusting according to the translation, requiring a switch to the classic editor for manual changes. Translations sometimes do not save at all. After following troubleshooting steps, translations can be saved, but the product does not show as completed (pen icon) and instead shows the gear icon. Manual adjustments are needed for product titles and permalinks.

Questions:
Why are translations not saving or completing?
Why do I need to switch to the Classic Translation Editor to complete translations?
Why are permalinks and titles not adjusting according to the translation?