Hi Richard,

This looks to be some sort of system error. I have found on some forums that users of other applications had similar errors due to some sort of AV software blocking the application from starting correctly.

Do you happen to have any anti-virus software installed? If so, do you have the option to add the ARIA Player, ARIA Engine, and/or Garritan World Instruments to that software's whitelist?

If none of this pans out, I would suggest getting in contact with an agent from our Customer Success team; you can do so by clicking the Submit a request link at the top of the page.

Hope this helps!