java.lang.RuntimeException: Exception creating Drop!
        at ua.gwm.sponge_plugin.crates.manager.Manager.<init>(Manager.java:117) ~[Manager.class:?]
        at ua.gwm.sponge_plugin.crates.GWMCrates.createManagers(GWMCrates.java:308) [GWMCrates.class:?]
        at ua.gwm.sponge_plugin.crates.GWMCrates.reload(GWMCrates.java:215) [GWMCrates.class:?]
        at ua.gwm.sponge_plugin.crates.command.GWMCratesCommand.process(GWMCratesCommand.java:60) [GWMCratesCommand.class:?]
        at org.spongepowered.api.command.dispatcher.SimpleDispatcher.process(SimpleDispatcher.java:336) [SimpleDispatcher.class:1.10.2-2281-5.2.0-BETA-2422]
        at org.spongepowered.common.command.SpongeCommandManager.process(SpongeCommandManager.java:291) [SpongeCommandManager.class:1.10.2-2281-5.2.0-BETA-2422]
        at net.minecraft.command.ServerCommandManager.func_71556_a(SourceFile:1083) [bd.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71333_ah(DedicatedServer.java:423) [ld.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:388) [ld.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_72]
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.manager.Manager.<init>(Manager.java:115) ~[Manager.class:?]
        ... 11 more
Caused by: java.lang.RuntimeException: Exception creating drop!
        at ua.gwm.sponge_plugin.crates.drop.drops.MultiDrop.<init>(MultiDrop.java:39) ~[MultiDrop.class:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.manager.Manager.<init>(Manager.java:115) ~[Manager.class:?]
        ... 11 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.drop.drops.MultiDrop.<init>(MultiDrop.java:36) ~[MultiDrop.class:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.manager.Manager.<init>(Manager.java:115) ~[Manager.class:?]
        ... 11 more
Caused by: java.lang.NullPointerException
        at ua.gwm.sponge_plugin.crates.drop.drops.ItemDrop.<init>(ItemDrop.java:26) ~[ItemDrop.class:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.drop.drops.MultiDrop.<init>(MultiDrop.java:36) ~[MultiDrop.class:?]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_72]
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_72]
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_72]
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_72]
        at ua.gwm.sponge_plugin.crates.manager.Manager.<init>(Manager.java:115) ~[Manager.class:?]
        ... 11 more