节点.js mysql 错误无法读取未定义的属性

我有一个程序，可以在SMDR数据进入时将其插入数据库。

这是我的代码：

var net = require('net'),
    mysql = require('mysql'),
    PORT = 1752,
    HOST = '192.168.10.2',
    pool = mysql.createPool({
        host: 'localhost',
        port: 3307,
        user: 'root',
        password: 'root',
        database: 'mydb'
    });
function connectionListener(conn) {
    console.log('Listening for incoming calls...');
}
function logCall(phonenumber, operator) {
    pool.getConnection(function(err, connection) {
        if (!err) { // If no error exists 
            var opquery = connection.query('SELECT OperatorID FROM tblOperators WHERE Phone_Login = ' + operator, function(err, rows) {
                if (err) {
                    console.error(err);
                    connection.release();
                    return;
                }
                var query = connection.query('INSERT INTO incoming_calls(phone_number, OperatorID) VALUES("' + 
                phonenumber + '", "' + rows[0].OperatorID + '") ON DUPLICATE KEY UPDATE OperatorID=OperatorID, date_created=NOW()', function(err, rows) {
                    if (err) {
                        console.error(err);
                    }
                    connection.release();
                });
            });
        } else {
            console.error(err);
        }
    });
}
function processdata(data) {
    var phonedata = data.toString().match(/([0-9]?)([0-9]{10})/),
        operdata = data.toString().match(/([*])([0-9]{4})/);
    if (phonedata !== null && operdata !== null) {
        var phonenumber = phonedata[2], 
            oper = operdata[2];
        oper = oper.replace('*', '');
        phonenumber = phonenumber.slice(0,3)+"-"+phonenumber.slice(3,6)+"-"+phonenumber.slice(6);
        logCall(phonenumber, oper);
    }
}
logCall('999-999-9999', '1203');
var conn = net.createConnection(PORT, HOST, connectionListener);
conn.on('data', processdata);
conn.setEncoding('utf8');

这是我收到的错误，当表中明显存在操作员 ID 时：

c:'xampp'htdocs>node listener
Listening for incoming calls...
c:'xampp'htdocs'node_modules'mysql'lib'protocol'Parser.js:82
        throw err;
          ^
TypeError: Cannot read property 'OperatorID' of undefined
    at Query._callback (c:'xampp'htdocs'listener.js:27:48)
    at Query.Sequence.end     (c:'xampp'htdocs'node_modules'mysql'lib'protocol'sequences'Sequence.js:96:24)
    at Query._handleFinalResultPacket     (c:'xampp'htdocs'node_modules'mysql'lib'protocol'sequences'Query.js:143:8)
    at Query.EofPacket (c:'xampp'htdocs'node_modules'mysql'lib'protocol'sequences'Query.js:127:8)
    at Protocol._parsePacket (c:'xampp'htdocs'node_modules'mysql'lib'protocol'Protocol.js:271:23)
    at Parser.write (c:'xampp'htdocs'node_modules'mysql'lib'protocol'Parser.js:77:12)
    at Protocol.write (c:'xampp'htdocs'node_modules'mysql'lib'protocol'Protocol.js:39:16)
    at Socket.<anonymous> (c:'xampp'htdocs'node_modules'mysql'lib'Connection.js:82:28)
    at Socket.emit (events.js:95:17)
    at Socket.<anonymous> (_stream_readable.js:764:14)

有没有人知道为什么会发生这种情况，我有一个使用它的生产数据库，具有相同的确切信息并且它可以工作？