Used distribution:
Kali Linux RaspberryPi-3-B [upgraded to latest changes via sudo apt-get dist-upgrade.
root@kali: uname -a
Linux kali 4.9.59-v7_Re4son-Kali-Pi+ 0000001 SMP Wed Feb 14 20:50:28 CST 2018 armv7l GNU/Linux

Greetings!

I found a solution:
I uninstalled two packages and removed the content of two below directories, Then I reboot the RPi-Zero and XFCE4 works fine.
I think the problem was from XFCE-Session holder/cache and similar.

root@kali: rm -fr ~/.cache/sessions/*
Also, I might need to clear the entire .cache directory if the above doesn't fix the issues (I did it):
root@kali: rm -fr ~/.cache

Then I removed kali-menu kali-linux-full and similar packages and after reboot, I installed them again (Also Kali distro downloaded more than 900 packges for reinstalling kali-linux-xxxxxx similar packges.) (unfortunately I cleared the HISTORY command cache. because I wanted to paste them here:/ )

Thanks in advance

I think the error messages shown and reported to systemd/dbus are unrelated to the symptoms your are describing with XFCE.

From your following answer, it looks like a cache corruption could be the root cause. In any case, this doesn't seem to be a generic problem so I'm closing the issue.