YiiBooster: TbJsonGridView - Parser error!

Hi.

we are using TbJsonGridView but it return a Parser error! on a alert when some body click on page number for pagination ,search ,sort link , Please guide us How to fix this , Code are as follows:

$this->widget('bootstrap.widgets.TbJsonGridView', array(
    'dataProvider' => $model->search(),
    'filter' => $model,
    'type' => 'striped bordered condensed',
    'json' => true,
    //'ajaxUpdate' => true,
    'summaryText' => false,
    'cacheTTL' => 10, // cache will be stored 10 seconds (see cacheTTLType)
    'cacheTTLType' => 's', // type can be of seconds, minutes or hours
    'columns' => array(
        'id_feedback',
        'feedback',
        'felkod',
        array(
            //'header' => Yii::t('ses', 'Action'),
            'class' => 'bootstrap.widgets.TbJsonButtonColumn',
            'template' => '{view} {update}',


        ),
    ),

));