This error may mean other application on your computer is already using 8001/8002 ports, the ports that DVS needs to run successfully.
Make sure to disable these apps before starting DVS or if possible change the ports used by other apps.
A full reinstall of DVS can often resolve this issue as well.
If you don’t have any application like this running on your computer and you still see error message, collect the logs from Dante Virtual Soundcard, and send it to Support Team.