Can't redirect visitor after subscribe

When visitors subscribe it redirects to the blog list page. i'm using the form inside a popup and tried the steps here with no luck.

that's for http://succesvolsamenwerken.nl, the "Aanmelden" button

shortcode used by the popup:
[enewsletter_subscribe show_name="1" show_groups="0" subscribe_to_groups="1"]

access granted