Thank you for the updates and sorry for the bit of waiting here. Our second level support, provided the following workaround:
IMPORTANT: Please, note, a backup is required for security reasons and to avoid any data loss, you can use the https://wordpress.org/plugins/backupwordpress/ plugin for these backup needs.
1 - Open the functions.php file of your child theme.
3 - Now, visit your website url in the primary language and add this suffix (query string) ?wpml_fix for exampe: yourwebsite.com/?wpml_fix then, reload the page.
4 - I applied this same fix for your translated shop page at: hidden link and it seems to be working as it should.
5 - Don't forget to remove the provided custom code above when done.
Please, let me know if it fix the stock issue, when done, we'll proceed with the price issue in a different ticket to keep one topic per issue. Thank you for your collaboration and patience, have a nice day.