RSS Error: WP HTTP Error: A valid URL was not provided

I am moving a development site to a permanent site. The permanent site is showing the following error:
RSS Error: WP HTTP Error: A valid URL was not provided
This is the development site (PHP5.4): http://bondapp.us/
This is the permanent site (on a different server PHP 5.5): https://healthlaw.bsk.com/
The feeds display fine on the development site, but not on the other. Any ideas?

I have walked through deactivating all plugins and default theme and the problem remains.