[18:33:27] [Server thread/ERROR] [Sponge/]: Could not pass SaveWorldEvent$Post$Impl to Plugin{id=skyclaims, name=SkyClaims, version=1.0.0-alpha4, description=SkyClaims is an Island plugin that integrates with GriefPrevention for Sponge servers., authors=[Mohron, Cossacksman], source=D:\Users\Dan\Downloads\FTBPresentsSkyfactory3Server_3.0.1\mods\skyclaims-1.0.0-alpha4.jar}
java.lang.NullPointerException
    at net.mohron.skyclaims.util.ConfigUtil.getWorld(ConfigUtil.java:34) ~[ConfigUtil.class:?]
    at net.mohron.skyclaims.SkyClaims.onWorldSave(SkyClaims.java:127) ~[SkyClaims.class:?]
    at org.spongepowered.common.event.listener.PostListener_SkyClaims_onWorldSave7.handle(Unknown Source) ~[?:?]
    at org.spongepowered.common.event.RegisteredListener.handle(RegisteredListener.java:95) ~[RegisteredListener.class:1.10.2-2202-5.1.0-BETA-2014]
    at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:301) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2014]
    at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:285) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2014]
    at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:326) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2014]
    at org.spongepowered.mod.event.SpongeModEventManager.post(SpongeModEventManager.java:314) [SpongeModEventManager.class:1.10.2-2202-5.1.0-BETA-2014]
    at net.minecraft.world.WorldServer.handler$onSaveAllChunks$zjm000(WorldServer.java:825) [ls.class:?]
    at net.minecraft.world.WorldServer.func_73044_a(WorldServer.java:1016) [ls.class:?]
    at org.spongepowered.common.world.WorldManager.saveWorld(WorldManager.java:514) [WorldManager.class:1.10.2-2202-5.1.0-BETA-2014]
    at net.minecraft.server.MinecraftServer.func_71267_a(MinecraftServer.java:695) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.constant$getSaveTickInterval$zhk000(MinecraftServer.java:650) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:632) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]