Fatal error: Uncaught Error: Class 'Zend_View_Helper_HtmlElement' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\View\Helper\FormElement.php:37 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\View\Helper\FormElement.php on line 37