Null pointer exception on load

[EyMaddis]

05:38:59 [WARNING] Task of 'Dynmap-Towny' generated an exception
java.lang.NullPointerException
at org.dynmap.markers.impl.MarkerAPIImpl$AreaMarkerUpdated.(MarkerAPIImpl.java:150)
at org.dynmap.markers.impl.MarkerAPIImpl.areaMarkerUpdated(MarkerAPIImpl.java:660)
at org.dynmap.markers.impl.AreaMarkerImpl.setCornerLocations(AreaMarkerImpl.java:306)
at org.dynmap.towny.DynmapTownyPlugin.handleTown(DynmapTownyPlugin.java:682)
at org.dynmap.towny.DynmapTownyPlugin.updateTowns(DynmapTownyPlugin.java:741)
at org.dynmap.towny.DynmapTownyPlugin.access$000(DynmapTownyPlugin.java:44)
at org.dynmap.towny.DynmapTownyPlugin$TownyUpdate.run(DynmapTownyPlugin.java:274)
at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:126)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:510)
at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)

Configuration:

Dynmap-Towny configuration

update:
period: 300
layer:
name: Towny
hidebydefault: false
layerprio: 2
minzoom: 0
showShops: false
showArenas: false
showEmbassies: false
showWilds: false
visibility-by-town: true
visibility-by-nation: true
infowindow:

%regionname% (%nation%)
Bürgermeister %playerowners%
Einwohner %playermanagers%

regionstyle:
strokeColor: '#FF0000'
strokeOpacity: 0.8
strokeWeight: 3
fillColor: '#FF0000'
fillOpacity: 0.35
homeicon: blueflag
capitalicon: king
fillColorShops: '#0000FF'
fillColorArenas: '#FF00FF'
fillColorEmbassies: '#00FFFF'
fillColorWilds: '#00FF00'
visibleregions: []
hiddenregions: []
custstyle:
customregion1:
strokeColor: '#00FF00'
y: 64
customregion2:
strokeColor: '#007F00'
y: 64
nationstyle:
Myrkonia:
strokeColor: '#09BD00'
fillColor: '#09BD00'
homeicon: greenflag
Telnarok:
strokeColor: '#0000FF'
fillColor: '#0000FF'
homeicon: blueflag
none:
homeicon: redflag