Sorry to hear you are having issues. Please know that the current version of Fences is not officially compatible with Windows 11.
This quote from Stardock Dev Team : https://forums.stardock.com/505829/get;3811392
With regards to the apps, we would recommend people do not install Windows 11 right now as it is for developers only. You should expect compatibility problems.
Stardock are currently working on looking at compatible apps and will have information on plans for Windows 11 in the coming weeks.
Stardock Community Assistant.