Can't add echo-speaks as a SmartApp

Hi all, I’ve followed the instructions accordingly and installed echo-speaks in the My SmartApps section of the ( IDE.

I then tried to do the same in the smartthings iOS app, after clicking onto Echo Speaks (main app), i got a popup saying Something went wrong. Please try to install the SmartApp again.

What could be the issue here?

It’s no longer allowed as of September 8th