Grafnana Dienst lässt sich nicht starten

hi,
ich habe mal mit journalctl -e -u grafana-server getestet. da kommen dann ein paar fehler.

Aug 28 06:30:12 Integra systemd[416]: grafana-server.service: Failed to set up mount namespacing: /run/systemd/unit-root/proc: Permission denied
Aug 28 06:30:12 Integra systemd[416]: grafana-server.service: Failed at step NAMESPACE spawning /usr/share/grafana/bin/grafana: Permission denied
Aug 28 06:30:12 Integra systemd[1]: grafana-server.service: Main process exited, code=exited, status=226/NAMESPACE
Aug 28 06:30:12 Integra systemd[1]: grafana-server.service: Failed with result 'exit-code'.
Aug 28 06:30:12 Integra systemd[1]: grafana-server.service: Scheduled restart job, restart counter is at 1.
Aug 28 06:30:12 Integra systemd[1]: Stopped Grafana instance.
Aug 28 06:30:12 Integra systemd[1]: Started Grafana instance.