Create Content Link Broken for Content Types With More Than One Word

When I tested this out with a content type with more than one word, I found that the create content link was broken.

So if my content type is something like "page", the create content link (after successful checkout, under the User's Pay Per Node tab) worked.

When I tested it with a content like "test_page" (machine readable name of content type), the create content link didn't work. It led to the same page as general create content link rather than the content-specific create content link (i.e. it looks like node/add even the URL is node/add/XXX). I think the issue may be an underscore instead of a dash in the URL (for the content type), although I didn't get it to work manually changing it (example: node/add/test_page to node/add/test-page).