Hello,
Sorry to hear you are having issues.
Sound Packager 10 was developed for Windows10
as of right now no SP11 for Win11 . However ,
Link https://forums.stardock.com/505717/stardock-app-compatibility
I have SP10 installed on my Win11 and it works fine for me .
Try uninstall and Reboot then reinstall reboot , test .
Try some of my sound packs .
AzDude
Stardock Community Assistant