MDS-NAS ran into a problem and was <a href="https://www.synology.com/knowledgebase/DSM/tutorial/Service_Application/Why_receive_improper_shutdown_notifications" target="_blank">improperly shut down</a> twice or more in the past 24 hours. This may result in severe data loss.<br>
We highly recommend using SNMP or USB UPS to protect your device and data if you haven't done so already.
>From MDS-NAS