Error - MySQL - DBLib

Hello, If I want to check if a player is in the database "registered" I'll get an error:

Code:

13:51:30 [CRITICAL] "Could not pass event 'cn.nukkit.event.player.PlayerJoinEvent' to 'JCLoginSystem v1.0': null on me.JackboyPlay.Listener.PlayerJoin
13:51:30 [ALERT] cn.nukkit.utils.EventException
at cn.nukkit.plugin.MethodEventExecutor.execute(MethodEventExecutor.java:34)
at cn.nukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:56)
at cn.nukkit.plugin.PluginManager.callEvent(PluginManager.java:557)
at cn.nukkit.Player.doFirstSpawn(Player.java:770)
at cn.nukkit.Player.sendNextChunk(Player.java:725)
at cn.nukkit.Player.checkNetwork(Player.java:1565)
at cn.nukkit.Server.tick(Server.java:996)
at cn.nukkit.Server.tickProcessor(Server.java:789)
at cn.nukkit.Server.start(Server.java:768)
at cn.nukkit.Server.<init>(Server.java:459)
at cn.nukkit.Nukkit.main(Nukkit.java:65)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'jackboyplay' in 'where clause'
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
at com.mysql.jdbc.Util.getInstance(Util.java:387)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:942)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3966)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3902)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2526)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2673)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2545)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2503)
at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1369)
at me.JackboyPlay.JCLogin.JCLogin.loginPlayer(JCLogin.java:125)
at me.JackboyPlay.Listener.PlayerJoin.onJoin(PlayerJoin.java:16)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at cn.nukkit.plugin.MethodEventExecutor.execute(MethodEventExecutor.java:29)
... 10 more

My code:

PHP:

123 | @SuppressWarnings("deprecation")
124 |   public static boolean loginPlayer(Player player) throws NumberFormatException, SQLException{
125 |      ResultSet rs = MySQL.getConnection().createStatement().executeQuery("SELECT * FROM login WHERE name = " + player.getName().toLowerCase());
126 |      if(rs.next()){
127 |           if(player.getClientId() == Long.parseLong(rs.getString("cid")) && player.getAddress() == rs.getString("ip")){
128 |              return true;
129 |           }
130 |      }
131 |       return false;
132 |   }


 

No one can help me?

 

Look at my post I've wrote the linenumbers behind the codeline

 

I generated a query with phpmyadmin and it works now fine thank you really really much for your help!