Upgraded XFCE, Panels Missing

[B J]

I upgraded all the packages on my xfce machine and upgraded from FreeBSD
11.2 to 11.3.  Somewhere in the process, the panels stopped working.

Both xfce4-panel and xfce4-panel-profiles are installed.  Going through
Settings Manager, I get the following message:

Failed to show the preferences dialog

GDBus.Error:org.freedesktop.DBus.Error.Service.Unknown:  The name
org.xfce.Panel was not provided by any .service files

I also tried:

pkg-static upgrade -f

but that didn't change anything.  I haven't deleted all the xfce files and
re-installed them yet.  I also checked on the Internet for this and I
haven't found any information on this, either.

Any suggestions?  Thanks.

B. M. Jatzeck