[14:02:49 ERROR]: Could not pass event BlockDropItemEvent to mcMMO v1.6.1 org.bukkit.event.EventException: null at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:309) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at org.bukkit.craftbukkit.v1_13_R2.event.CraftEventFactory.callBlockDropItemEvent(CraftEventFactory.java:203) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PlayerInteractManager.breakBlock(PlayerInteractManager.java:383) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PlayerInteractManager.a(PlayerInteractManager.java:219) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1176) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PacketPlayInBlockDig.a(SourceFile:40) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PacketPlayInBlockDig.a(SourceFile:10) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.a(SourceFile:10) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_201] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201] at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:895) [spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:830) [spigot.jar:git-Spigot-518206a-a5b9c7b] at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:728) [spigot.jar:git-Spigot-518206a-a5b9c7b] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201] Caused by: java.lang.NoSuchMethodError: org.bukkit.event.block.BlockDropItemEvent.getItems()Ljava/util/List; at com.gmail.nossr50.listeners.BlockListener.onBlockDropItemEvent(BlockListener.java:54) ~[?:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_201] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_201] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_201] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-518206a-a5b9c7b] ... 18 more