[Plugin] MyDrop - Drop ze stona

[axe321]

ERROR]: Could not pass event InventoryClickEvent to MyDrop v1.2 RELASE
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:487) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:472) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:1403) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PacketPlayInWindowClick.a(SourceFile:32) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.PacketPlayInWindowClick.handle(SourceFile:10) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
Caused by: java.lang.NoSuchMethodError: org.bukkit.Bukkit.getOfflinePlayer(Ljava/util/UUID;)Lorg/bukkit/OfflinePlayer;
	at me.mikigal.mydrop.events.InventoryEvent.onInv(InventoryEvent.java:33) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_101]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_101]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_101]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[spigot-1.7.2-R0.4-SNAPSHOT.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
	... 14 more

Ktoś wie dlaczego tak się dzieje? Sypie tego typu błędami. 

Wersja mc 1.7.2, wersja spigot 1.7.2, java 8. 

 

Na craftbukkicie 1.7.2 w ogóle pluginu nie wczytywało.