[SOLVED]Armbian Debian Buster.. ubuntu 18.04

[jim321]

there is still an authentication error on both ubuntu and armbian in latest release.
and no pop up to enter password.
ubuntu 18.04 xfce 4.12 desktop

terminal

pi@pi-P53E:~$ openplotter-settings
==== AUTHENTICATING FOR org.freedesktop.policykit.exec ===
Authentication is needed to run `/usr/bin/settingsSourcesInstall' as the super user
Authenticating as: pi,,, (pi)
Password:
==== AUTHENTICATION FAILED ===

openplotter terminal

polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
Error executing command as another user: Not authorized

This incident has been reported.