Install libsensors-applet-plugin0 by entering the following commands in the terminal:
sudo apt update sudo apt install libsensors-applet-plugin0
Description:
Library for plugins for the 'sensors-applet' package
GNOME Sensors Applet is an applet for the GNOME panel that displays readings from hardware sensors, including temperatures, fan speeds and voltage readings. . This package contains the library that is used to create plugins for the applet.
Homepage: http://sensors-applet.sourceforge.net/
Version: 3.0.0+git6-0.1ubuntu3
Section: universe/libs