I also report this error, while attemping to install the child theme it says I don’t have enough permissions…

[Thu Apr 23 12:51:58.405074 2015] [:error] [pid 30555] [client 93.46.21.127:27513] PHP Fatal error: Call to undefined function wc_get_screen_ids() in /nas/wp/www/cluster-40188/creativepreset/wp-content/plugins/woocommerce/includes/admin/class-wc-admin.php on line 151, referer: http://www.creativepresets.com/wp-admin/themes.php?page=install-required-plugins