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 US LAX>ECU ESM Feb 12, 2018 17:54 UTC

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