Install libdecoration0 by entering the following commands in the terminal:
sudo apt update sudo apt install libdecoration0
Description:
Compiz window decoration library
The window decoration library is responsible for drawing the window borders and title bar of windows managed by Compiz. It is used by window decorators like gtk-window-decorator.
Homepage: https://launchpad.net/compiz
Version: 1:0.9.13.1+18.04.20180302-0ubuntu1
Section: universe/x11