[21:45:03 WARN]: [xAuth] Could not load items for player 'Youtuber_PL'
org.bukkit.configuration.InvalidConfigurationException: Top level is not a Map.
        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:59) ~[spigot.jar:git-Spigot-1627]
        at de.luricos.bukkit.xAuth.inventory.ItemData.fromString(ItemData.java:75) ~[xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerDataHandler.restoreData(PlayerDataHandler.java:196) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerManager.unprotect(PlayerManager.java:397) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerManager.doLogin(PlayerManager.java:726) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.command.player.LoginCommand.onCommand(LoginCommand.java:67) [xAuth.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-1627]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [spigot.jar:git-Spigot-1627]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1013) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:850) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:184) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1627]
[21:45:03 WARN]: [xAuth] Could not load armor items for player 'Youtuber_PL'
org.bukkit.configuration.InvalidConfigurationException: Top level is not a Map.
        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:59) ~[spigot.jar:git-Spigot-1627]
        at de.luricos.bukkit.xAuth.inventory.ItemData.fromString(ItemData.java:75) ~[xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerDataHandler.restoreData(PlayerDataHandler.java:202) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerManager.unprotect(PlayerManager.java:397) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.PlayerManager.doLogin(PlayerManager.java:726) [xAuth.jar:?]
        at de.luricos.bukkit.xAuth.command.player.LoginCommand.onCommand(LoginCommand.java:67) [xAuth.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-1627]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [spigot.jar:git-Spigot-1627]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1013) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:850) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:184) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot.jar:git-Spigot-1627]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigo