We are terribly sorry for inconveniences. We would recommend to installed previous version of WooCommerce till we update theme. You can get previous version of plugin (2.6.14) at the bottom of this page
We are terribly sorry for temporary inconveniences.
All themes have faced the issue after WooCommerce update. You should download it at this page (scroll to the bottom, select it and download) http://prntscr.com/eyrbxb
Then upload it instead of current WooCommerce via FTP connection or by uninstall new version and install previous one.