I reloaded, still no ghosts and there are 2 events running where ghosts are required.

They appear in the event window  but not on the map :(

Just saw that theyi are in my kd but not in 589 Steingelmor and we are in KvK event.

Unfortunately, if you play using Plarium.com on a computer, its one of those days when the time runs out on most of the invaders and ghosts.

You could find yourself, waiting for around 4 hrs+ for the new ones to show, you may even have to reload the game as well.

The time they take to reappear tends to be inconsistant,but they tend to reappear in the earlier kingdoms sooner than the later ones, similar to the special gift ubers.