The requested vessel with name SINICA and MMSI:273365050 and IMO:0 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
SINICA GRAECA 9717486 538006175 TUTICORIN INDIA Feb 15, 2018 02:23 UTC

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