Im having a problem with google reports, im trying to make a linechart report but its only appears a white page!!!

cam you help me?? thanks in advance!

<<index.php>>
<?php

    require_once "EmployeeList.php";

    $report = new EmployeeList;

    $report->run()->render();
	

?>

<<EmployeeList.view.php>>

<?php
    use \koolreport\widgets\google\LineChart;
?>

	<?php 
	
        LineChart::create(array(
            "dataStore"=>$this->dataStore("Claro"),
            "columns"=>array(
                "REF"=>array(
                    "label"=>"REF",
                    "type"=>"text"
                ),
                "P3G"=>array(
                    "label"=>"P3G",
                    "type"=>"number",
                    "prefix"=>"$"
                )        	
            ),
            "options"=>array(
                "title"=>"Sale Performance"
            )
        ));
    ?>

<<EmployeeList.php>>

<?php

require_once "C:/wamp/www/Garajes/koolreport/autoload.php";

 

class EmployeeList extends \koolreport\KoolReport

{

    function settings()

    {

        return array(

            "dataSources"=>array(

                "mydata"=>array(

                    'connectionString' => 'mysql:host=localhost;dbname=csv_db',

                    'username' => 'root',

                    'password' => '',

                    'charset' => 'utf8',

               )

            )

        );

    }

    function setup()

    {

        $this->src("mydata")

        ->query("SELECT * FROM  `garajes_amba_final`  WHERE P3G = 'CLARO' " )

        ->pipe($this->dataStore("Claro"));

    }

}