Does the theme support the new WooCommerce? Getting the warning about updating the plugin:
2.6 is a major update so it is important that you make backups, and ensure themes and extensions are 2.6 compatible before upgrading. Developers should catch up with the development blog to see what has been happening in core.Note: 2.6 includes Shipping Zone functionality. Please ensure shipping method extensions in particular (e.g. Table Rate Shipping) support 2.6 **before** updating.