Just done a fresh install of X. When I come to install Woocommerce from Addons, it installs version 2.6.0-beta-1. Is there a reason that you’ve moved from stable 2.5.5 to this?
Thanks for writing in! I can confirm that this is a bug in the theme. It fetches the beta version which our developers is currently testing. Please deactivate it and delete the WooCommerce plugin. If you need to install it, please install it from WordPress repository which is by going to Plugins > Add New. Just search for woocommerce in the search field (http://prnt.sc/b33u24).