Hello,
Sorry for the issue you are having. Can you please try updating the iLok License Manager application to the latest version, as well as reinstalling Ultra Reverb to confirm that you are using the latest version? If that doesn’t resolve your issue, please provide what OS you are running and the screenshot of the error message you are seeing.
The latest installer can be found here: https://www.eventideaudio.com/downloads/?product=UltraReverb
