Hello Karen,
Thanks for me giving me access to your server.
I found the reason why the post type select dropdown is not working for in your server. It seems to be happening because of a bug in WooCommerce plugin. Here is the link to the ticket in WooCommerce plugin about this issue https://github.com/woothemes/woocommerce/pull/8123
They are going to fix it only in v2.5 of WooCommerce. But I am not going to wait for it but will be trying to add some code in my plugin to see if I can fix it.
Please wait for a couple of days and I will release an update to my plugin that will have an workaround for the WooCommerce issue.