The requested vessel with name SUN UNITY and MMSI:0 and IMO:8012322 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SUN UNITY 9803106 371206000 MA IN Feb 14, 2018 22:23 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.