[22:06:12 WARN]: Failed to handle packet for /10.0.0.4:50873
java.lang.IllegalStateException: Too many channels registered
        at com.google.common.base.Preconditions.checkState(Preconditions.java:145) ~[craftbukkit.jar:git-Spigot-1646]
        at org.bukkit.craftbukkit.v1_7_R4.entity.CraftPlayer.addChannel(CraftPlayer.java:1067) ~[craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1949) ~[craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.PacketPlayInCustomPayload.a(PacketPlayInCustomPayload.java:39) ~[craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.PacketPlayInCustomPayload.handle(PacketPlayInCustomPayload.java:51) ~[craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) ~[craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [craftbukkit.jar:git-Spigot-1646]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Spigot-1646]
[22:06:12 INFO]: Zanup lost connection: Internal server error