Invalid Token

/* Javascript */
=================

function ambilData(id){
    save_method = 'update';

    $('#form-cabang')[0].reset();

    $.ajax({
        url         : site + "datacabang/get_data/" + id,
        type        : "GET",
        dataType    : "JSON",
        success     : function(data){
            // console.log(data);
            $('[name="Txt_NamaCabang"]').focus();
            $('.form-group').removeClass('has-error')
                            .removeClass('has-success');
            $('.help-block').remove();

            $('[name="Text_Kode"]').val(data.robb_branch);
            $('[name="Txt_NamaCabang"]').val(data.robb_branch_name);
            $('[name="Txt_TeleponCabang"]').val(data.robb_telp);
            $('[name="Txt_TeleponCabang"]').val(data.robb_address);

            $('#Tombol').html('<i class="icofont icofont-edit"></i> Update');
            $('#Tombol').addClass('btn btn-success waves-effect waves-light btn-sm');
        },
        error: function (jqXHR, textStatus, errorThrown){
            alert('Error get data from ajax');
        }
    });
}


/* Controller */
/* ini saya pake datatables serverside */
=============================================

form_button(['type' => 'button', 'content' => '<i class="icofont icofont-edit-alt"></i> Edit', 'class'=>'btn btn-success waves-effect waves-light btn-sm', 'data' => $field->robb_branch, 'onclick' => 'ambilData('.$field->robb_branch.');'])