Grafana Clock-Panel - manual installation - not working

I have version 10.4.2 installed.

The machine has no internet access

I have configured grafana.ini to look in /opt/grafana/plugins directory

I have downloaded and unzipped the file into /opt/grafana/plugins/ and permissions are set to grafana:grafana

Screenshot 2024-08-26 130920

grafana.log:
logger=settings t=2024-08-26T11:57:57.44505635-05:00 level=info msg=“Starting Grafana” version=10.4.2 commit=22809dea50455ae875624827dd277b17621b4ed4 branch=HEAD compiled=2024-08-26T11:57:57-05:00
logger=settings t=2024-08-26T11:57:57.448345455-05:00 level=info msg=“Config loaded from” file=/usr/share/grafana/conf/defaults.ini
logger=settings t=2024-08-26T11:57:57.448387462-05:00 level=info msg=“Config loaded from” file=/etc/grafana/grafana.ini
logger=settings t=2024-08-26T11:57:57.4483974-05:00 level=info msg=“Config overridden from command line” arg=“default.paths.data=/var/lib/grafana”
logger=settings t=2024-08-26T11:57:57.448410457-05:00 level=info msg=“Config overridden from command line” arg=“default.paths.logs=/var/log/grafana”
logger=settings t=2024-08-26T11:57:57.448420052-05:00 level=info msg=“Config overridden from command line” arg=“default.paths.plugins=/var/lib/grafana/plugins”
logger=settings t=2024-08-26T11:57:57.448429031-05:00 level=info msg=“Config overridden from command line” arg=“default.paths.provisioning=/etc/grafana/provisioning”
logger=settings t=2024-08-26T11:57:57.448437707-05:00 level=info msg=Target target=[all]
logger=settings t=2024-08-26T11:57:57.448465266-05:00 level=info msg=“Path Home” path=/usr/share/grafana
logger=settings t=2024-08-26T11:57:57.448475665-05:00 level=info msg=“Path Data” path=/var/lib/grafana
logger=settings t=2024-08-26T11:57:57.448484533-05:00 level=info msg=“Path Logs” path=/var/log/grafana
logger=settings t=2024-08-26T11:57:57.448492957-05:00 level=info msg=“Path Plugins” path=/opt/grafana/plugins
logger=settings t=2024-08-26T11:57:57.448501551-05:00 level=info msg=“Path Provisioning” path=/etc/grafana/provisioning
logger=settings t=2024-08-26T11:57:57.448510046-05:00 level=info msg=“App mode production”
logger=sqlstore t=2024-08-26T11:57:57.448904737-05:00 level=info msg=“Connecting to DB” dbtype=sqlite3
logger=migrator t=2024-08-26T11:57:57.449675984-05:00 level=info msg=“Starting DB migrations”
logger=migrator t=2024-08-26T11:57:57.46644887-05:00 level=info msg=“migrations completed” performed=0 skipped=548 duration=689.572µs
logger=secrets t=2024-08-26T11:57:57.467872356-05:00 level=info msg=“Envelope encryption state” enabled=true currentprovider=secretKey.v1
logger=renderer.manager t=2024-08-26T11:57:57.480975396-05:00 level=error msg=“Failed to load renderer plugin” error=“unable to read file info: CHANGELOG.md, path: /opt/grafana/plugins/grafana-clock-panel/CHANGELOG.md”
logger=plugin.store t=2024-08-26T11:57:57.491453053-05:00 level=info msg=“Loading plugins…”
logger=plugins.registration t=2024-08-26T11:57:57.530215981-05:00 level=info msg=“Plugin registered” pluginId=input
logger=plugin.store t=2024-08-26T11:57:57.530425283-05:00 level=error msg=“Loading plugin source failed” source=external error=“unable to read file info: CHANGELOG.md, path: /opt/grafana/plugins/grafana-clock-panel/CHANGELOG.md”
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