Fatal error: Uncaught Error: Class 'Zend_Form_Element_Submit' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Form\Element\Button.php:35
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Form\Element\Button.php on line 35