Presumably you forgot to revoke the Audirvana license (at the top of the settings page) before uninstalling?
No matter, it can be fixed, but you’d probably get the matter seen to more quickly by writing to support@audirvana.com .
With the mess that the release of Audirvana Studio has been, staff seem to be spending significantly less time monitoring these forums, but some users have reported success in response to e-mails.