On-Premises - Download - Generation Failed

On-Premises - Download - Generation Failed

I have already raised a support request for this but due to lack of progress I thought I would ask the forum if they can help.

I would like to try running my creator application in the on-premises version.  However I can't even get started, as when I attempt to download any application from ZC, I receive a "Generation Failed" error.

Does anyone know any way I can get the application download function to work?