Ubuntu desktop suddenly points to home folder or Documents Folder [solved]

Go to your home folder

and type

ctrl + H
that will show all hidden file

now click on follwing folder

.config
inside .config folder open following file in your favorite text editor
user-dirs.dirs now change your existing code by below code
XDG_DESKTOP_DIR="$HOME/Desktop" XDG_DOWNLOAD_DIR="$HOME/Downloads" XDG_TEMPLATES_DIR="$HOME/Templates" XDG_PUBLICSHARE_DIR="$HOME/Work" XDG_DOCUMENTS_DIR="$HOME/Documents" XDG_MUSIC_DIR="$HOME/Music" XDG_PICTURES_DIR="$HOME/Pictures" XDG_VIDEOS_DIR="$HOME/Videos
now restart pc