OSM Composer java.lang.NullPointerException

Ich will gerade anfangen meine Karten selber zu bauen, doch mapcomposer liefert mir jetzt diesen Fehler und ich kann nicht herausfinden woran das liegt:

Starting map generation
Testing Mapsource
Removing MapSource registry values
calling Registry remove
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Tagfilter/name
Rebuilding View Renderregeln/order
Rebuilding View Renderregeln/order
Rebuilding View Renderregeln/order
java.lang.NullPointerException

Der Error log sieht so aus:

27.06.17 15:14 java.lang.NullPointerException
27.06.17 15:14 Exception Main loop
java.lang.NullPointerException
at nop.osmc.generator.Mapper.checkTagFilters(Mapper.java:414)
at nop.osmc.generator.Mapper.generate(Mapper.java:111)
at nop.osmc.MapComposer$12.act(MapComposer.java:414)
at nop.gui.MenuThreadAction.run(MenuThreadAction.java:27)
at java.lang.Thread.run(Unknown Source)

der Command log sieht so aus:

reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Garmin\MapSource\Families\Homezone" /f

FEHLER: Zugriff verweigert

Kann mir jemand sagen wo der Fehler liegt?
Oder muss ich noch irgendwelche Informationen liefern?
Danke