Fatal error: Uncaught Error: Class 'Zend_Feed_Writer_Extension_RendererAbstract' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Feed\Writer\Extension\DublinCore\Renderer\Feed.php:33 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Feed\Writer\Extension\DublinCore\Renderer\Feed.php on line 33