In the event that you have an invalid configuration which prevents you from launching the application, you will need to clear this configuration before you can get into settings.
This can result in an Invalid License String error as the client is unable to access the BOC Server to validate its license.
Uninstalling and reinstalling the application will not clear this configuration.
We have a tool you can use to clear the configuration.
You may download it from here.
BOC Cleanup Tool
We recommend exporting the settings from a working console and saving for the configuration of new workstations.