After Editing a product (changing price) I click on "Update" - it brings me to a blank page //....mysite.com.au/wp-admin/post.php
Refreshing the page does nothing. Changes do not take effect.
I cannot even deactivate the plugin or any other for that matter - just goes to a black page //...mysitecom.au/wp-admin/plugins.php?action=deactivate&plugin=wp-e-commerce%2Fwp-shopping-cart.php&plugin_status=all&paged=1&s&_wpnonce=0f6a48fa10
last update I have done before this happened is WP version 4.5.2–en_AU