System Tray is missing the night mode applet

Hello people, i installed EndeavourOS with KDE netinstall on my main PC and my laptop, only to find that the icon /applet in the System Tray for night mode is missing. It does not appear anywhere, but the KCM entry for night mode is present. This is both my laptop and the desktop PC.

Install kdeplasma-addons:

sudo pacman -S kdeplasma-addons