Data Mapper - Server returned HTTP 500

Error:

When saving/debugging inside the data mapper, we are receiving this error

Error Message: Server returned HTTP response code: 500 for URL:

Cause:

The Adeptia Mapper applet is disconnected from the Adeptia server

Solution:

Confirm that you are able to connect to the Adeptia server and that there are no current network issues with your local machine.