[تم الحل] Can't add a new image for the product gallery for the Chinese version

Background of the issue:
This website is a WooCommerce website. I have created the Chinese version using WPML plugin. After integrating this plugin, I couldn't add a new image for the product gallery.

Symptoms:
The image is disappearing once I add it and click on the update button.

Questions:
Why can't I add a new image for the product gallery in the Chinese version?
How can I fix the issue of the image disappearing after updating?