Trouble with Vault API

I have never used the Vault API, so this is my first time.
Im getting this error.

Code:

org.bukkit.command.CommandException: Unhandled exception executing command 'test' in plugin CoordSeller v1.0.0
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:956) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:817) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
Caused by: java.lang.NullPointerException
    at me.Zix.Coords.Main.onCommand(Main.java:50) ~[?:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-6-g4d832c3-b3090jnks]
    ... 13 more

This is my code.

Code:java

package me.Zix.Coords;
 
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.RegisteredServiceProvider;
import org.bukkit.plugin.java.JavaPlugin;
 
import net.milkbowl.vault.economy.Economy;
import net.milkbowl.vault.economy.EconomyResponse;
 
public class Main extends JavaPlugin {
 
    @Override
    public void onEnable() {
 
        setupEconomy();
 
    }
 
 
    // Starts Vault
 
 
    public static Economy economy = null;
 
    private boolean setupEconomy()
    {
        RegisteredServiceProvider<Economy> economyProvider = getServer().getServicesManager().getRegistration(net.milkbowl.vault.economy.Economy.class);
        if (economyProvider != null) {
            economy = economyProvider.getProvider();
        }
 
        return (economy != null);
    }
 
 
    // End Vault Starting
 
 
    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
        Player player = (Player) sender;
        double money = 140;
 
        if(label.equalsIgnoreCase("test")){
            if(args.length == 0){
                player.sendMessage(ChatColor.BLUE + "/test " + ChatColor.GRAY + "1");
                economy.depositPlayer(player.getName(), money);
            }
        }
 
        return true;
    }
 
}
 

Again, this is my first time using this API, so I know Im bad : P

 

Zix
Could be economy is null. You also didn't check if setupEconomy could return false (Thus meaning null).