At the "Folder Name?" prompt, press [SPACE with T], [CONTROL with T] to enter Directory Tree View. Select one layer at a time as you would just the one layer in Folder List View (the default; that's why you see "Folder Name?" instead of "Directory Name?" as the prompt when manipulating documents unless you've entered Directory Tree View), or you can type the path name directly, but remember the slashes between layers, even the slash prior to the first folder name.
If you can't delete the innermost folder in a directory, there are "hidden" files in that folder, so via File Manager>Directory, navigate to the "List of Files" in that directory, hit [SPACE with X], [READ with X] to display the "List of All, Including Hidden, Files" in that directory, SPACE through the list, and when you land on each file, hit [BACKSPACE with dots 1-4], [CONTROL with I], then Y to delete and confirm deletion of the "hidden" files. Then, you can delete that innermost folder, and work outwards, repeating the procedure until the whole backup folder is deleted. Apologies, I haven't been following this thread from its beginning, but the above is what it sounded as if the situation was about based on this and the subsequent messages on the thread, as well as its subject line. HTH, Maria
