KDE/Ubuntu 21.04: accidentally killed the taskbar "window"

In KSysGuard there's a tool to kill a window by clicking on it. On the way to kill the window I wanted, I accidentally clicked on the taskbar, which is now gone. How do I turn it back on without rebooting?


Solution 1:

The command to run from the terminal is

kstart5 plasmashell

That brought the taskbar back.