Hi @hawafi,
With this test we’ve been verifying that there was no duplication of postmeta due to a WooCommerce 3.0 bug.
Let’s do this:
Find the file wp-config.php It is usually located in the main WordPress folder. You can find it using a FTP client, or your Web Hosting Admin Panel.
Open the file and find this code:
define('WP_DEBUG', false);
Replace it with
define('WP_DEBUG', true);
Then, save the file.
This code will force WordPress to print any PHP error.
It can be useful for developers to understand what is the problem, if there’s one.
Let us know if some error is displayed.
Regards,
YITH