[22:49:42 INFO]: UUID of player kyle1264 is 14dc4d63-0b3f-458b-ae1c-1388fc8c7b08

[22:49:42 WARN]: Failed to handle packet for /127.0.0.1:55818
java.lang.IllegalArgumentException: Listener already listening
        at net.minecraft.server.v1_7_R3.Container.addSlotListener(Container.java
:54) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.EntityPlayer.syncInventory(EntityPlayer.
java:167) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.PlayerList.a(PlayerList.java:168) ~[spig
ot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.LoginListener.c(LoginListener.java:105)
~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.LoginListener.a(LoginListener.java:43) ~
[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:183
) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(ServerConnection.java
:81) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:7
20) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
83) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
83) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:489) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [spigot.jar:git-Spigot-1518]
[22:49:42 INFO]: kyle1264 lost connection: Internal server error
[22:49:43 INFO]: kyle1264 left the game.
[22:49:45 INFO]: UUID of player kyle1264 is 14dc4d63-0b3f-458b-ae1c-1388fc8c7b08

[22:49:45 WARN]: Failed to handle packet for /127.0.0.1:55830
java.lang.IllegalArgumentException: Listener already listening
        at net.minecraft.server.v1_7_R3.Container.addSlotListener(Container.java
:54) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.EntityPlayer.syncInventory(EntityPlayer.
java:167) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.PlayerList.a(PlayerList.java:168) ~[spig
ot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.LoginListener.c(LoginListener.java:105)
~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.LoginListener.a(LoginListener.java:43) ~
[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:183
) ~[spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(ServerConnection.java
:81) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:7
20) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
83) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
83) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:489) [spigot.jar:git-Spigot-1518]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [spigot.jar:git-Spigot-1518]