homebridge issue

Had stable Homebridge integration on RasPi for 8 odd years until a power outage.
Trying to re-establish fresh image

following Greig's instructions and get (multiple attempts so showing Done for some commands)
the last line i think is evidence of an issue. I can not seem to get passed.
update-rc.d: error: cgate Default-Start contains no runlevels, aborting.



pi@homebridge:~ $ sudo -E -H ./setup.sh step1
=======================================
>> download jq:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
jq is already the newest version (1.6-2.1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
=======================================
>> download and setup java:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
openjdk-8-jre-headless is already the newest version (8u312-b07-1+rpi1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
=======================================

>> download and setup c-gate:

/usr/local/bin/cgate exists. Download skipped

>> Set CGate to start as a service using systemd
Synchronizing state of cgate.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable cgate
update-rc.d: error: cgate Default-Start contains no runlevels, aborting.