I launched a skill utilizing the Githhub how-to skill kit early this year and it was working perfectly until a few weeks ago... I updated an external function (=./recipes), meaning I added more recipes and attempted to resubmit the skill to give the user more recipes to choose from. The skill passed certification, but now no longer works properly. A user can no longer open the skill with their echo device or interact with it in any fashion. I've tried to resubmit the original version of the skill, but this now fails certification every time for "Issue with endpoint validation".
Is the code for the how-to-skill-kit no longer functional with current Alexa Developer guidelines? What steps do I need to take to to get the code working so I don't have a live skill that doesn't work?