Bukkit

What steps will reproduce the problem?
1. /egg start - everything is going good
2. /egg go- goes good for 10seconds
3./egg go - after the 10seconds and a chicken spawns, it doest give out a prize for wool the egg lands on.

What is the expected output? What do you see instead?
That the winner is announced and gets his/her reward. Instead it does nothing at all, just seems to stop going.

What version of the product are you using?
1.3.1

Do you have an error log of what happened?
Yes this is what happens in console after /egg go is typed in.
28.01 11:56:32 [Server] INFO Package checker successfully executed.
28.01 11:55:09 [Server] INFO at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
28.01 11:55:09 [Server] INFO at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
28.01 11:55:09 [Server] INFO at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
28.01 11:55:09 [Server] INFO at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
28.01 11:55:09 [Server] INFO at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:530)
28.01 11:55:09 [Server] INFO at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
28.01 11:55:09 [Server] INFO at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftTask.run(CraftTask.java:53)
28.01 11:55:09 [Server] INFO at me.derflash.plugins.eggroulette.CNEggRoulette$1.run(CNEggRoulette.java:171)
28.01 11:55:09 [Server] INFO at me.derflash.plugins.eggroulette.Utils.spawnChicken(Utils.java:48)
28.01 11:55:09 [Server] INFO java.lang.NoSuchMethodError: me.derflash.plugins.eggroulette.RouletteChicken.getBukkitEntity()Lorg/bukkit/craftbukkit/v1_4_R1/entity/CraftEntity;
28.01 11:55:09 [Server] WARNING Task #121 for CNEggRoulette v1.3.1 generated an exception
28.01 11:54:29 [Server] INFO New round, new chances. Take your sign and place your bets.

Please provide any additional information below.

Does anybody know how to fix this? I have got the same problem :(