WorldGuard Proble, Help!

So im getting this error:

15.01 16:22:36 [Server] INFO at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
15.01 16:22:36 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
15.01 16:22:36 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
15.01 16:22:36 [Server] INFO at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:227)
15.01 16:22:36 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:509)
15.01 16:22:36 [Server] INFO at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:344)
15.01 16:22:36 [Server] INFO at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftTask.run(CraftTask.java:58)
15.01 16:22:36 [Server] INFO at com.sk89q.worldguard.bukkit.FlagStateManager.run(FlagStateManager.java:93)
15.01 16:22:36 [Server] INFO at com.sk89q.worldguard.bukkit.FlagStateManager.processHeal(FlagStateManager.java:109)
15.01 16:22:36 [Server] INFO java.lang.NoSuchMethodError: org.bukkit.entity.Player.getHealth()D
15.01 16:22:36 [Server] WARNING Task #21 for WorldGuard v5.8 generated an exception
15.01 16:22:35 [Server] INFO at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
15.01 16:22:35 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
15.01 16:22:35 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
15.01 16:22:35 [Server] INFO at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:227)
15.01 16:22:35 [Server] INFO at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:509)
15.01 16:22:35 [Server] INFO at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:344)
15.01 16:22:35 [Server] INFO at org.bukkit.craftbukkit.v1_5_R3.scheduler.CraftTask.run(CraftTask.java:58)
15.01 16:22:35 [Server] INFO at com.sk89q.worldguard.bukkit.FlagStateManager.run(FlagStateManager.java:93)
15.01 16:22:35 [Server] INFO at com.sk89q.worldguard.bukkit.FlagStateManager.processHeal(FlagStateManager.java:109)
15.01 16:22:35 [Server] INFO java.lang.NoSuchMethodError: org.bukkit.entity.Player.getHealth()D
15.01 16:22:35 [Server] WARNING Task #21 for WorldGuard v5.8 generated an exception

anybody knows why?

 

turolla2000
Direct from the changelog for WorldGuard 5.8

BREAKING CHANGE: This version has been built for versions of Bukkit for MC 1.6.1 and newer. Do not try to use this version of WG on an older Bukkit version.

You need an older version of WG.

 

OOOh im sorry, im extremelly dumb!

Thank you Sir!