For some reason child hosts disappeared from the automaps. Only the root host is displayed. Everything was working fine but suddenly no more child hosts in the maps.
Have searched the logs but didn't find anything that could have caused the problem. Restarted apache and no changes. Later restarted the server but still no changes.
The only thing that I noticed was that in the modules, when I select nagvis, there is a message saying "There is no such module installed", which is odd because all the static maps are working fine...
Google for the message but no luck...