Fatal error: Call to undefined method sfConfigCache::getinstance() in E:\xampp\htdocs\myproject\plugins\sfBreadcrumbsPlugin\config\config.php on line 3

if (!$module)
{
  return null;
}

all:
  geslicsoft:
    name: Gestión de Licencias de Software
    sections:
      categories:
        name: Gestión Licencias
        actions:
          autores:
            name: Gestión Autores
          ListarAutores:
            name: Listar Autores
          AdicionarAutor:
            name: Adicionar Autor

all:
  default:
    name: Inicio
    sections:
      principal:
        name: Acciones
        actions:
          Index: Iniciar sesión
  geslicsoft:
    name: Gestión de Licencias
    sections:
      autores:
        name: Autores
        actions:
          ListarAutores:
            name: Listar Autores
          AdicionarAutor:
            name: Adicionar Autor
          EditarAutor:
            name: Editar Autor
      categorias:
        name: Categorias
        actions:
          ListarCategorias:
            name: Listar Categorías
          AdicionarCategoria:
            name: Adicionar Categoría
          EditarCategoria:  
            name: Editar Categoría

all:
  news:
    name: testModuleName
    sections:
      categories:
        name: testCategoryName
        actions:
          Index:
            name: testCrumbName

<?php

// include project configuration
include(SF_ROOT_DIR.DIRECTORY_SEPARATOR.'config'.DIRECTORY_SEPARATOR.'config.php');

// symfony bootstraping
require_once($sf_symfony_lib_dir.'/util/sfCore.class.php');
sfCore::bootstrap($sf_symfony_lib_dir, $sf_symfony_data_dir);

include_once(SF_ROOT_DIR.'/apps/frontend/config/breadcrumbs.yml');

breadcrumbs.yml:
  class: sfBreadcrumbsConfigHandler

<?php

class newsActions extends sfActions
{
  public function executeIndex()
  {
    ... buncha code ...
  }
}

...
<?php echo sfBreadcrumbs::getInstance()->getBreadcrumbText() ?>
...

all:
  news:
    name: testModuleName
    sections:
      categories:
        name: testCategoryName
        actions:
          Index:
            name: testCrumbName

include_once( sfConfigCache::getInstance()->checkConfig( sfConfig::get('sf_apps_dir_name').'/config/breadcrumbs.yml' ) );