This error message means that a previous package installation or upgrade was interrupted (e.g., by a power loss, terminal closure, or network issue), leaving the Debian package management system in an inconsistent state.
sudo dpkg --audit Then research the specific package causing the failure (often cuda , docker , or kernel packages). You may need to purge that package manually. This error message means that a previous package
sudo reboot Then update and upgrade normally: by a power loss