Install libflatpak0 by entering the following commands in the terminal:
sudo apt update sudo apt install libflatpak0
Description:
Application deployment framework for desktop apps (library)
Flatpak installs, manages and runs sandboxed desktop application bundles. See the flatpak package for a more comprehensive description. . This package contains the flatpak shared library, used by higher level package management tools like gnome-software.
Homepage: http://flatpak.org/
Version: 0.11.3-3
Section: universe/libs