Hello,
You can’t just replace files from our theme by default WC files because we made changed in files and many options won’t work if you just replace the files by original WC files. If you are interested you may read the posts how to create a woocommerce theme to understand how it works.
Please, update theme to the version 3.0. It’s available on ThemeForest.
This version is compatible with WC 3.0.4.
I would recommend you before uploading theme files delete “woocommerce” folder, which is located in wp-content/themes/woopress/ to avoid problems with old files.
Don’t forget to create backup of your files and database before starting update process!
You need to enter your purchase code to activate our new theme version and skip Setup Wizard.
Regards,
Rose Tyler.