Theme does not work completely with NextGen Gallery plugin

I use the NextGen Gallery plugin with this theme and when I go to "sort gallery", I get taken to a 404 error page. Screen grab attached. The free version of this theme worked perfectly with NextGen. NextGen plugin is a hugely common and popular plugin that works with every other WP theme I've used. Do you have any plans on supporting the plugin so that all the features in the plugin will work with your paid theme?