No hint path defined for [errors] - Backpack Bulk Action Operation

@if ($crud->hasAccess('bulkPrivate') && $crud->get('list.bulkActions'))
<a href="javascript:void(0)" onclick="bulkPrivateDesigns(this)" class="btn btn-sm btn-secondary bulk-button"><i class="fa fa-clone"></i> Hacer privados</a>
@endif

@push('after_scripts')
<script>
  if (typeof bulkPrivateDesigns != 'function') {
    function bulkPrivateDesigns(button) {

      if (typeof crud.checkedItems === 'undefined' || crud.checkedItems.length == 0) {
        new Noty({
          type: "warning",
          text: "<strong>{{ trans('backpack::crud.bulk_no_entries_selected_title') }}</strong><br>{{ trans('backpack::crud.bulk_no_entries_selected_message') }}"
        }).show();

        return;
      }

      var message = "Estás a punto de hacer privados :number diseños, ¿estás seguro?";
      message = message.replace(":number", crud.checkedItems.length);

      // show confirm message
      swal({
        title: "{{ trans('backpack::base.warning') }}",
        text: message,
        icon: "warning",
        buttons: {
          cancel: {
            text: "{{ trans('backpack::crud.cancel') }}",
            value: null,
            visible: true,
            className: "bg-secondary",
            closeModal: true,
          },
          delete: {
            text: "Hacer privados",
            value: true,
            visible: true,
            className: "bg-primary",
          }
        },
      }).then((value) => {
        if (value) {
          var ajax_calls = [];
          var clone_route = "{{ url($crud->route) }}/bulk-private";
          // submit an AJAX delete call
          $.ajax({
            url: clone_route,
            type: 'POST',
            data: {
              entries: crud.checkedItems
            },
            success: function(result) {
              // Show an alert with the result
              new Noty({
                type: "success",
                text: "<strong>Hacer privado masivo</strong><br>" + crud.checkedItems.length + " diseños han sido puesto como privados"
              }).show();

              crud.checkedItems = [];
              crud.table.ajax.reload();
            },
            error: function(result) {
              console.log(result);
              // Show an alert with the result
              new Noty({
                type: "danger",
                text: "<strong>Hacer privado masivo</strong><br>Uno o más diseños no han podido hacerse privados"
              }).show();
            }
          });
        }
      });
    }
  }
</script>
@endpush

class DesignCrudController extends CrudController
{
    public function bulkPrivate()
    {
        $this->crud->hasAccessOrFail('create');

        $entries = $this->crud->getRequest()->input('entries');
        
        Design::whereIn('id', $entries)->update(['private' => 1]);

        return $entries;
    }

    protected function setupBulkPrivateRoutes($segment, $routeName, $controller)
    {
        Route::post($segment . '/bulk-private', [
            'as'        => $routeName . '.bulkPrivate',
            'uses'      => $controller . '@bulkPrivate',
            'operation' => 'bulkPrivate',
        ]);
    }

    protected function setupBulkPrivateDefaults()
    {
        $this->crud->allowAccess('bulkPrivate');
        $this->crud->operation('list', function () {
            $this->crud->enableBulkActions();
            $this->crud->addButtonFromView('top', 'bulkPrivateDesigns', 'bulkPrivateDesigns', 'beginning');
        });
    }
}