Custompress - Did I break it? What happened?

Honestly I don't know what happened. I can't reproduce the error I saw, something about an illegal type.... not sure what that's all about.

My custom posts should be showing up on

I created a page to try to control the template type, similar to the way WooCommerce allows... everything was fine for a bit, then bam, custom posts disappeared. I tried changing a few settings, resetting permalinks, deleting cache. I'm befuddled here.