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