Ошибка Internal server error

net.minecraft.util.ReportedException: Ticking player
        at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:457)
        at net.minecraft.network.NetServerHandler.func_72498_a(NetServerHandler.java:502)
        at net.minecraft.network.packet.Packet10Flying.func_73279_a(SourceFile:136)
        at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:442)
        at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:223)
        at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
        at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NoSuchMethodError: org.bukkit.craftbukkit.v1_5_R3.CraftServer.getLoadChunkOnRequest()Z
        at net.minecraft.server.management.ServerConfigurationManager.changeDimension(ServerConfigurationManager.java:843)
        at net.minecraft.entity.player.EntityPlayerMP.func_71027_c(EntityPlayerMP.java:638)
        at net.minecraft.entity.Entity.func_70030_z(Entity.java:527)
        at net.minecraft.entity.EntityLiving.func_70030_z(EntityLiving.java:576)
        at net.minecraft.entity.Entity.func_70071_h_(Entity.java:479)
        at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:835)
        at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:336)
        at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:406)
        ... 11 more
20:06:22 [WARNING] Failed to handle packet for kursorik/31.202.214.26: net.minecraft.util.ReportedException: Ticking player
net.minecraft.util.ReportedException: Ticking player
        at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:457)
        at net.minecraft.network.NetServerHandler.func_72498_a(NetServerHandler.java:502)
        at net.minecraft.network.packet.Packet10Flying.func_73279_a(SourceFile:136)
        at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:442)
        at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:223)
        at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
        at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:865)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NoSuchMethodError: org.bukkit.craftbukkit.v1_5_R3.CraftServer.getLoadChunkOnRequest()Z
        at net.minecraft.server.management.ServerConfigurationManager.changeDimension(ServerConfigurationManager.java:843)
        at net.minecraft.entity.player.EntityPlayerMP.func_71027_c(EntityPlayerMP.java:638)
        at net.minecraft.entity.Entity.func_70030_z(Entity.java:527)
        at net.minecraft.entity.EntityLiving.func_70030_z(EntityLiving.java:576)
        at net.minecraft.entity.Entity.func_70071_h_(Entity.java:479)
        at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:835)
        at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:336)
        at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:406)
        ... 11 more