Hello,
Sorry to hear you are having issues. Try uninstall, reboot, reinstall the latest version. Reboot again and retest. Report back here. Also, it is best if you have any other software/setting/reg hack that was done to change default Windows 11/10 taskbar and Start panel. Please uninstall/undo/ those before using Start11.
Thanks
Basj,
Stardock Community Assistant.