Blank settings page

Hello, great work with XML Sitemaps 7.x-2.2

I'm trying to set the XML sitemap for my website in Drupal 8.0.0-dev and I know it's sandbox right now but, I keep getting a blank page when I go to /admin/config/search/xmlsitemap.

I searched over and though it has to do something with entity translation but none of the previous issues talked about blank settings page.

Hope you could help me out here

Regards