Shuts down on startup

[SpruceFan]

I have reinstalled Minimserver of a Synology DS781+ running DSM 7.1. When I click run it starts but in only seconds it shuts down again. It reports that it was manually shut down. Thinking that I had botched the reinstall I have reinstalled it to no avail. I haven't had this problem before, it's running fine on a Synology 716+ also running DSM 7.1