DBus notification service error

[Linuxghost]

Software
XBian version: 1.0 kernel 4.1.13+
XBMC/Kodi version: 15.2 Git:2015-12-04-858ee60
Overclock settings: default

Hardware
Device type and model: Raspberry Pi 2
Power supply rating: ThePiHut 5V 2A
SD card size and make/type: 8GB Sandisk Ultra Class 10
Network: Ethernet
Connected devices: Toshiba TV 40TL838

Log files
Link to logfile(s):

Problem description:
After startup of Kodi I get the notification (!) DBus notification service error.
In the log I find two errors;
ERROR: DBus: Error org.freedesktop.UDisks.Error.Failed - Error mounting: mount exited with exit code 1: helper failed with: mount: only root can mount /dev/root on /home
and later;
Error Type: <class 'dbus.exceptions.DBusException'>
Error Contents: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
As a result;
I cannot sudo systemctl list-units
(Failed to get D-Bus connection: Unknown error -1)
And Pushbullet does not receive messages

How to reproduce:
After start of Kodi