[21:21:53 ERROR]: Could not pass event PrepareItemCraftEvent to CraftDisable v1
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:499) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callPreCraftEvent(CraftEventFactory.java:770) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.Container.a(Container.java:652) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.ContainerWorkbench.a(ContainerWorkbench.java:54) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.InventoryCrafting.setItem(InventoryCrafting.java:130) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.Slot.set(SourceFile:79) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.ContainerWorkbench.b(ContainerWorkbench.java:97) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.Container.a(Container.java:251) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1885) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:33) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:10) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_131]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_131]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:747) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576) [Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
Caused by: java.lang.NullPointerException
        at CDPack.Main$1.craftItem(Main.java:44) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[Spigot.jar:git-Spigot-4df3c0c-03f1e37]
        ... 22 more