Integration with Scaled Access not working

I am working to integrate my Auth0 application with Scaled Access. I am using the Scaled Access integration from the marketplace. When testing the integration, I get the following error:

Failed to call relationship management API https://api.int.us.scaledaccess.com/privategroups-v2/

There seems to be very little documentation/troubleshooting help on the Scaled Access integration. Can someone help here?