Lockette Pro Error

[lBatuhanTR]

[18:57:34] [ForkJoinPool.commonPool-worker-6/ERROR]: Could not pass event InventoryMoveItemEvent to LockettePro v2.9.0
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:505) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:480) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.TileEntityHopper.r(TileEntityHopper.java:289) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.TileEntityHopper.m(TileEntityHopper.java:195) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.TileEntityHopper.c(TileEntityHopper.java:183) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.World.lambda$6(World.java:1933) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.MinecraftServer.runSafe(MinecraftServer.java:127) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at net.minecraft.server.v1_8_R3.World.lambda$4(World.java:1931) ~[ElapsedSpigot.jar:git-TacoSpigot-fd3209f3]
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) [?:1.8.0_252]
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) [?:1.8.0_252]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) [?:1.8.0_252]