14.11 16:50:01 [Server] INFO ==============================================================
14.11 16:50:01 [Server] INFO The following is an error encountered in EpicFurnaces.
14.11 16:50:01 [Server] INFO --------------------------------------------------------------
14.11 16:50:01 [Server] WARN java.lang.NullPointerException
14.11 16:50:01 [Server] WARN at com.songoda.epicfurnaces.listeners.InventoryListeners.onInventoryClick(InventoryListeners.java:63)
14.11 16:50:01 [Server] WARN at sun.reflect.GeneratedMethodAccessor430.invoke(Unknown Source)
14.11 16:50:01 [Server] WARN at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
14.11 16:50:01 [Server] WARN at java.lang.reflect.Method.invoke(Method.java:498)
14.11 16:50:01 [Server] WARN at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302)
14.11 16:50:01 [Server] WARN at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
14.11 16:50:01 [Server] WARN at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500)
14.11 16:50:01 [Server] WARN at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1891)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:33)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:10)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13)
14.11 16:50:01 [Server] WARN at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
14.11 16:50:01 [Server] WARN at java.util.concurrent.FutureTask.run(FutureTask.java:266)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679)
14.11 16:50:01 [Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577)
14.11 16:50:01 [Server] WARN at java.lang.Thread.run(Thread.java:748)