Failed to show preferences dialogue

Upon adding a second panel at the bottom of the screen, my desktop went blank, I’ve lost all panels, and when I go to settings via right clicking desktop and clicking “panels” it comes up with this error:

Failed to show the preference dialogue
GDBus.error:org.freedesktop.DBus.Error.ServiceUnknown: the name is not activatable

Right for anyone that has this issue it can be fixed via typing this: “xfce4-panel” in dom0 terminal, however you have to do this every launch…

Edit: I know what’s causing it, adding a seperator with the “expand” box checklisted crashes the panel. However removing that doesn’t actually allow you to restart and get the panel back, so you still have to enter that command every reboot.

Actually, this is the solution