Hello,
We found that you use out of date version of WordPress, WooCommerce and our theme. Also, number of files that you placed to child theme (legenda-child/framework/theme-functions.php and shortcodes.php) are out of date. Do you remember what things you changed there? If you need to edit any function from those files you need to copy function to child theme functions.php, don’t overwrite the whole file with the core theme functions!
So, update WordPress, WooCommerce, WooCommerce WPML, WPML and then reply back with the FTP access to update theme for you and make sure that our of date plugins/theme won’t cause any additional issue. After that we’ll be able to proceed with the next steps.
Regards