When the program tries to register the server, an error appears in the DB. How to fix?

Question

Java

Hello everyone, When the program tries to register a server in bd, an error appears, and so every time, I tried everything I could, I basically don’t work with java, and I don’t know how to solve this problem, please help

package protocols;


import database.Database;
import lowentry.ue4.libs.jackson.databind.JsonNode;
import other.Encode;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;


/**
 * Created by root on 31.03.2018.
 */
public class AddServer
{
  public static HashMap<String, Object> Handle(JsonNode dataNode)
  {
    HashMap<String,Object> data = new HashMap<String,Object>();

    data.put("success", false);
    data.put("ecode", 0);

    JsonNode dataTypeNode = dataNode.get("type");
    JsonNode dataIpNode = dataNode.get("ip");
    JsonNode dataPortNode = dataNode.get("port");
    JsonNode dataMaxPlayersNode = dataNode.get("max_players");
    JsonNode dataGameModeNode = dataNode.get("mode");
    JsonNode dataNameNode = dataNode.get("name");

    if(dataTypeNode != null && dataIpNode != null && dataPortNode != null && dataMaxPlayersNode != null)
    {
      int dataType = dataTypeNode.intValue();
      String dataIp = dataIpNode.textValue();
      int dataPort = dataPortNode.intValue();
      int dataMaxPlayers = dataMaxPlayersNode.intValue();
      String dataGameMode = "Lobby";
      String dataName = "None";

      if(dataGameModeNode != null && dataType == 2 && dataNameNode != null)
      {
        dataGameMode = dataGameModeNode.textValue();
        dataName = dataNameNode.textValue();
      }

      try
      {
        if(!Database.SendSelectQuery("SELECT * FROM servers WHERE ip='" + dataIp + "' AND port='" + dataPort + "'").next())
        {
          Database.SendUpdateQuery("INSERT INTO servers (name, type, ip, port, max_players, game_mode) VALUES ('" + dataName + "', '" + dataType + "', '" + dataIp + "', '" + dataPort + "', '" + dataMaxPlayers + "', '" + dataGameMode + "')");
          System.out.println("Add Server: Type: " + dataType + ", Address: " + dataIp + ":" + dataPort);
          ResultSet rs = Database.SendSelectQuery("SELECT id FROM servers WHERE ip='" + dataIp + "' AND port='" + dataPort + "'");
          if(rs.next())
          {
            data.put("id", rs.getInt("id"));
            data.replace("success", true);
          }
        }
        else
          data.replace("ecode", 2);
      }
      catch(SQLException e)
      {
        e.printStackTrace();
      }
    }

    Database.Closed();
    return data;
  }
}

at protocols.AddServer.Handle(AddServer.java:51)
Swears at this line
Database.SendUpdateQuery("INSERT INTO servers (name, type, ip, port, max_players, game_mode) VALUES ('" + dataName + "', ' " + dataType + "', '" + dataIp + "', '" + dataPort + "', '" + dataMaxPlayers + "', '" + dataGameMode + "')");