AnCasino Error

[20:37:50] [Server thread/WARN]: [AnCasino] Task #27607 for AnCasino v2.0-b1-0.6 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Note.<init>(BLorg/bukkit/Note$Tone;Z)V
	at me.darazo.ancasino.slot.game.ResultsTask$3.run(ResultsTask.java:162) ~[?:?]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftTask.run(CraftTask.java:53) ~[server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:583) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:250) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:541) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:453) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [server.jar:git-Bukkit-1.6.4-R2.0-28-g373cbb7-b2945jnks]
[20:37:51] [Server thread/WARN]: [AnCasino] Task #27608 for AnCasino v2.0-b1-0.6 generated an exception