The requested vessel with name KOREA VENUS and MMSI:0 and IMO:6519003 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
KOREA VENUS 8716734 440836000 YOS,KOREA Jan 11, 2018 07:31 UTC

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