[16:00:29] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'login' in plugin xAuth v2.4.4
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-1181]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192) ~[spigot.jar:git-Spigot-1181]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:546) ~[spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:938) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:813) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:146) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(SourceFile:134) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:647) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:259) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:530) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:442) [spigot.jar:git-Spigot-1181]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1181]
Caused by: java.lang.NullPointerException
	at de.luricos.bukkit.xAuth.PlayerDataHandler.buildItemStack(PlayerDataHandler.java:190) ~[?:?]
	at de.luricos.bukkit.xAuth.PlayerDataHandler.restoreData(PlayerDataHandler.java:269) ~[?:?]
	at de.luricos.bukkit.xAuth.PlayerManager.unprotect(PlayerManager.java:275) ~[?:?]
	at de.luricos.bukkit.xAuth.PlayerManager.doLogin(PlayerManager.java:561) ~[?:?]
	at de.luricos.bukkit.xAuth.commands.LoginCommand.onCommand(LoginCommand.java:65) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-1181]
	... 13 more