The requested vessel with name WORLD HARMONY and MMSI:0 and IMO:7374670 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
WORLD HARMONY 9382970 636014804 PTO ARMUELLES PANAMA Oct 15, 2017 12:48 UTC

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