Hello,
Sorry to hear you are having issues. First, please try, uninstall Start11, reboot immediately (important), download latest version available in your account product download page: https://store.stardock.com/myaccount/products. Install it, reboot immediately again. Retest it and report back.
Also, need information on your Windows 11 full version and OS Build number. Please use Winver.exe.
Thank you,
Basj,
Stardock Community Assistant.