error

[21:08:48] [Server thread/INFO]: herhor67: /zbudujdom 1 0
[21:08:51] [Server thread/INFO]: 8.48686026 - x: 0.5, y: 3.5, z: -239.5
[21:08:53] [Server thread/WARN]: [Skript] Task #341 for Skript v2.1.2 generated an exception
java.lang.NoSuchMethodError: com.sk89q.worldedit.WorldEdit.getInstance()Lcom/sk89q/worldedit/WorldEdit;
    at pl.piratjsk.piratesk.schematics.EffPasteSchematic.paste(EffPasteSchematic.java:67) ~[?:?]
    at pl.piratjsk.piratesk.schematics.EffPasteSchematic.execute(EffPasteSchematic.java:43) ~[?:?]
    at ch.njol.skript.lang.Effect.run(Effect.java:50) ~[?:?]
    at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:63) ~[?:?]
    at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:91) ~[?:?]
    at ch.njol.skript.effects.Delay$1.run(Delay.java:85) ~[?:?]
    at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:694) [spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot_server.jar:git-Spigot-b1e6da1-17962f6]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]