Sorry to hear you are having issues. Fences Desktop pages will not create a new page until you move something over to the left or right screen border. Try it with, Desktop pages enable. Move a fence or an icon by clicking on it and drag it over to the left or right edge of your monitor screen. It will automatically create a new Desktop page for you. Same thing if you wish to delete a page just move everything off the page and the page get deleted.
Try it and let us know.
Stardock Community Assistant.