I need to remove the message when there is no data in my chart

[Misael]

Hi friends, I have a graph that works perfectly for me, but I have no idea how to remove the message "Data column (s) for axis # 0 cannot be of type string". This message shows it when there is no data, it is a dynamic graph and sometimes it will not have data, so I want to remove that message. I would appreciate your help. 

this is my graph.

<script type="text/javascript">

    google.charts.load("current", {packages:["corechart"]});

    google.charts.setOnLoadCallback(drawChart);

    function drawChart() {

      var data = google.visualization.arrayToDataTable([

       

        ['Nombre de evento', 'Cantidad de asistentes',{ role: "style" } ],

            @foreach ($datasis as $datasistencia)

              ["{{$datasistencia->Nombre}}", {{ $datasistencia->number}}, "#038579"],

        

            @endforeach

        ]);

      var view = new google.visualization.DataView(data);

      view.setColumns([0, 1,

                       { calc: "stringify",

                         sourceColumn: 1,

                         type: "string",

                         role: "annotation" },

                       2]);

      var options = {

        title: "Registro de usuarios que asistirián a los eventos",

        

        bar: {groupWidth: "75%"},

        legend: { position: "none" },

      };

      var chart = new google.visualization.BarChart(document.getElementById("barchart_valuesistencia"));

      chart.draw(view, options);

  }

  </script>