DCS won't start on SBC

I've been following @gloomyandy guide to setting up an SBC for the SKR1.4:

[github.com]

I got the raspberry pi all set up, but when I run the script (the one written by PCR), I get errors while processing certain packages:

dpkg: error processing package duetcontrolserver (--configure):
installed duetcontrolserver package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of duettools:
duettools depends on duetcontrolserver (= 3.2.0); however:
Package duetcontrolserver is not configured yet.

dpkg: error processing package duettools (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of duetwebserver:
duetwebserver depends on duetcontrolserver (>= 3.2.0); however:
Package duetcontrolserver is not configured yet.

dpkg: error processing package duetwebserver (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of duetsoftwareframework:
duetsoftwareframework depends on duetcontrolserver (= 3.2.0); however:
Package duetcontrolserver is not configured yet.
duetsoftwareframework depends on duettools (= 3.2.0); however:
Package duettools is not configured yet.
duetsoftwareframework depends on duetwebserver (= 3.2.0); however:
Package duetwebserver is not configured yet.

dpkg: error processing package duetsoftwareframework (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of reprapfirmware:
reprapfirmware depends on duetsoftwareframework (>= 3.2.0); however:
Package duetsoftwareframework is not configured yet.
reprapfirmware depends on duetcontrolserver (>= 1.2.0.0); however:
Package duetcontrolserver is not configured yet.

dpkg: error processing package reprapfirmware (--configure):
dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of duetwebcontrol:
duetwebcontrol depends on duetsoftwareframework (>= 3.2.0); however:
Package duetsoftwareframework is not configured yet.

dpkg: error processing package duetwebcontrol (--configure):
dependency problems - leaving unconfigured
Errors were encountered while processing:
duetcontrolserver
duettools
duetwebserver
duetsoftwareframework
reprapfirmware
duetwebcontrol
E: Sub-process /usr/bin/dpkg returned an error code (1)
-----Stop DCS and DWS---
-----Both stoped-----
-----CHANGES MADE-----
Job for duetcontrolserver.service failed because the service did not take the steps required by its unit configuration.
See "systemctl status duetcontrolserver.service" and "journalctl -xe" for details.
-----DCS and DWS started-----

Any information would be appreciated. Thanks!

When I run sudo apt update, hit 3 returns:

[pkg.duet3d.com] unstable InRelease

Is there a way to download a previous release that is stable?