[14:02:33] [Server thread/INFO]: ArsenioCunha issued server command: /plot claim
[14:02:33] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'plot' in plugin PlotSquared v2.1
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) ~[spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) ~[spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1043) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:880) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.NoSuchMethodError: net.milkbowl.vault.economy.Economy.getBalance(Lorg/bukkit/OfflinePlayer;)D
	at com.intellectualcrafters.plot.commands.Claim.execute(Claim.java:59) ~[?:?]
	at com.intellectualcrafters.plot.commands.MainCommand.onCommand(MainCommand.java:104) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot-20141001.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	... 13 more