Fatal error: Uncaught Error: Class 'Zend_Serializer_Adapter_AdapterAbstract' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Serializer\Adapter\Wddx.php:41 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Serializer\Adapter\Wddx.php on line 41