One line not showing up in multiple line chart with variables

[Mario D]

Hello, im reading 2 variables over Labview named var_x and var_z then drawing chart on their values.  I cant manage to draw blue (var_x) line as picture show. 

there is code if anyone can help me and change it:

google.charts.load('current', {'packages':['corechart']});
var numbersFromLabView = [];
var time = [];



$('.viewbutton').click(function() {
  // Zovi api poziv i dohvati podatke svako 2 sec
  $('#portfolio').addClass('hidden');
  $('#element-di-zivi-aplikacija').removeClass('hidden');
  setInterval(getDataFromLabView, 2000);
});


function getDataFromLabView() {
  var jsonData = $.ajax({
    url: 'projectXHTTP',
    dataType: 'json',
    success: function (jsonArray) {
     
      var zadnjiBroj   = jsonArray[0];
      var zadnjiBrojy  = jsonArray[1];

   
      drawChart(zadnjiBroj, zadnjiBrojy );
   
   
   
      $(document.querySelector('.current-number'))  .text(zadnjiBroj);
   $(document.querySelector('.current-numbery')) .text(zadnjiBrojy);
 
    }
  });
}


function drawChart(number,number) {
  var data  = new google.visualization.DataTable();
  moment.locale('hr');
  time.push(moment());
  numbersFromLabView.push(number);
 



  data.addColumn('string', 'Time of Day');
  data.addColumn('number', 'var_x');
  data.addColumn('number', 'var_y');
 
  numbersFromLabView.forEach((number, key) =>  {
    // za svaki broj koji dohvati ubaci njega i vrijeme u data Objekt
    data.addRow([time[key].format('LTS'), number, number]);
 
  });
 


 
  var options = {
    background: 'transparent',
    title: 'Numeric values from LabView on time scale',
    height: '500px',
    width: '100%',
    hAxis: {
      title: 'Vrijeme',
    },
    vAxis: {
      title: 'STRUJA_I',
 
     
    }
  }


 
  var chart = new google.visualization.LineChart(document.querySelector('#chart_div'));
 
 
  chart.draw(data, data, options);
}