How to solve "error sync log" error in ubuntu?

Question

ubuntu

Every half hour an error pops up

Here are the logs of the /var/log/syslog file:
Aug 29 10:14:51 serii-desktop dbus[830]: [system] Activating via systemd: service name='org.bluez' unit='dbus -org.bluez.service'
Aug 29 10:14:51 serii-desktop dbus[830]: [system] Activation via systemd failed for unit 'dbus-org.bluez.service': Unit dbus-org.bluez.service not found.
Aug 29 10:17:01 serii-desktop CRON[17143]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
I understand that cron is a daemon program for running tasks, but I enter crontab -l - no crontab for user, the same is displayed for root.
And the second, as far as Google suggested, is bluethoose. How to turn it off because I have a desktop computer?
Thanks in advance for your help

Answer 1

Check status
If enabled then disable:
sudo systemctl disable bluetooth.service