Each time I close the Dolphin, the following error is shown:
Unable to save bookmarks in /home/username/.kde/share/apps/d3lphin/bookmarks.xml. Reported error was: Permission denied. This error message will only be shown once. The cause of the error needs to be fixed as quickly as possible, which is most likely a full hard drive.
sudo chown USERNAME /home/USERNAME/.kde/share/apps/d3lphin/bookmarks.xml
Replace “USERNAME” with your username.