A built in feature of Server Essentials, till 2019, is the ability of the server to send a daily “Health Report”. This contains information about the last backup, storage, services and more. I always configure this on all Essentials servers and set to send at 7:00 am for my review later. On 4 of the Essentials servers I manage it seems on the morning of the Daylight Savings change, at 1:00 am it tried to send a report for some reason, failed, and has failed the 7:00 am report ever since.
Though the error shows the problem is the “Windows Server Essentials Management Service” is not running, checking the Services management console shows it is. Simply restarting the service resolves the problem. You can right click on the last report and choose “send e-mail” to verify.