I cannot use bluetooth in my ubuntu machine
systemctl status of bluetooth.service output these informations

Dec 23 10:57:41 ln-HP bluetoothd[10039]: Current Time Service could not be registered
Dec 23 10:57:41 ln-HP bluetoothd[10039]: gatt-time-server: Input/output error (5)
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Not enough free handles to register service
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Not enough free handles to register service
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSource
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSink
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Endpoint registered: sender=:1.35 path=/MediaEndpoint/A2DPSource
Dec 23 10:57:41 ln-HP bluetoothd[10039]: Endpoint registered: sender=:1.35 path=/MediaEndpoint/A2DPSink
Dec 23 10:57:41 ln-HP bluetoothd[10039]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: Address already in use (98)
Dec 23 10:57:41 ln-HP systemd[1]: Started Bluetooth service.