Remote entities and MySQL problems?

I'm trying to make a tokens plugin that actually works cross server, and it does work, but my addTokens method doesn't work, and RemoteEntities says the class I need to make an NPC with interact behaviors cannot be found.

Remote entities stack trace:

Code:

[20:57:44 ERROR]: Error occurred while enabling MLFTokens v1.0 (Is it up to date
?)
java.lang.NoClassDefFoundError: de/kumpelblase2/remoteentities/RemoteEntities
        at me.majorleaguefactions.Tokens.onEnable(Tokens.java:31) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[c
raftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:332) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:412) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.jav
a:476) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.
java:394) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.reload(CraftServer.java:86
6) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.Bukkit.reload(Bukkit.java:301) [craftbukkit.jar:git-Spigot
-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:
23) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
1) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServe
r.java:767) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchServerCommand(Craf
tServer.java:753) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.DedicatedServer.aB(DedicatedServer.java:
326) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:2
90) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:5
84) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java
:490) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:6
28) [craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.ClassNotFoundException: de.kumpelblase2.remoteentities.Remo
teEntities
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]
        at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_
31]
        at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_31]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:101) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.
java:86) ~[craftbukkit.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]
        ... 17 more

and here's the error when I try add tokens to a player:

Code:

[20:59:39 INFO]: ESSPlaysMC issued server command: /addtokens ESSPlaysMC 1
[20:59:39 WARN]: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unkn
own column 'c0748ae5-8a18-4f1a-b017-bf65c4fdd847' in 'where clause'
[20:59:39 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance
0(Native Method)
[20:59:39 WARN]:        at sun.reflect.NativeConstructorAccessorImpl.newInstance
(Unknown Source)
[20:59:39 WARN]:        at sun.reflect.DelegatingConstructorAccessorImpl.newInst
ance(Unknown Source)
[20:59:39 WARN]:        at java.lang.reflect.Constructor.newInstance(Unknown Sou
rce)
[20:59:39 WARN]:        at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
[20:59:39 WARN]:        at com.mysql.jdbc.Util.getInstance(Util.java:382)
[20:59:39 WARN]:        at com.mysql.jdbc.SQLError.createSQLException(SQLError.j
ava:1052)
[20:59:39 WARN]:        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:
3593)
[20:59:39 WARN]:        at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:
3525)
[20:59:39 WARN]:        at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1986)

[20:59:39 WARN]:        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:21
40)
[20:59:39 WARN]:        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.
java:2626)
[20:59:39 WARN]:        at com.mysql.jdbc.PreparedStatement.executeInternal(Prep
aredStatement.java:2111)
[20:59:39 WARN]:        at com.mysql.jdbc.PreparedStatement.executeUpdate(Prepar
edStatement.java:2407)
[20:59:39 WARN]:        at com.mysql.jdbc.PreparedStatement.executeUpdate(Prepar
edStatement.java:2325)
[20:59:39 WARN]:        at com.mysql.jdbc.PreparedStatement.executeUpdate(Prepar
edStatement.java:2310)
[20:59:39 WARN]:        at me.majorleaguefactions.MySQL.addTokens(MySQL.java:52)

[20:59:39 WARN]:        at me.majorleaguefactions.Tokens.onCommand(Tokens.java:9
8)
[20:59:39 WARN]:        at org.bukkit.command.PluginCommand.execute(PluginComman
d.java:44)
[20:59:39 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCo
mmandMap.java:181)
[20:59:39 WARN]:        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCo
mmand(CraftServer.java:767)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.PlayerConnection.handleC
ommand(PlayerConnection.java:1043)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.PlayerConnection.a(Playe
rConnection.java:880)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(Packe
tPlayInChat.java:28)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(
PacketPlayInChat.java:65)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.NetworkManager.a(Network
Manager.java:186)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.ServerConnection.c(Serve
rConnection.java:81)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.v(Minecr
aftServer.java:734)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.DedicatedServer.v(Dedica
tedServer.java:289)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.u(Minecr
aftServer.java:584)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.MinecraftServer.run(Mine
craftServer.java:490)
[20:59:39 WARN]:        at net.minecraft.server.v1_7_R4.ThreadServerApplication.
run(SourceFile:628)

And this is my MySQL code:

Code:

 public void addTokens(Player p, Integer amount) {
          try {
          PreparedStatement statement = connection.prepareStatement("UPDATE `razedhub`.`tokens` SET `balance` = `balance` + account WHERE `tokens`.`uuid`=`" + p.getUniqueId() + "`");
          statement.executeUpdate();
          statement.close();
          } catch (Exception e) {
          e.printStackTrace();
  }
  }

What am I doing wrong!??

 

Code:

[20:59:39 WARN]: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'c0748ae5-8a18-4f1a-b017-bf65c4fdd847' in 'where clause'

That's your problem ^
It can't find the column to update it.

 

Suggestion: Use Prepared statements and lose all the quotes.

 

@Lolmewn @InfamousSheep I know, but how should I do it?

 

Code:

PreparedStatement statement = connection.prepareStatement("UPDATE razedhub.tokens SET balance = ? WHERE tokens.uuid = ?;");
statement.setInt(1, balance + account);
statement.setString(2, p.getUniqueID());

Also, just realised; you didn't end the query with a semi-colon.

 

@InfamousSheep Not actually required when it's only one query, it seems to do just fine without it It's probably better to do it though, yeah.