Fatal error: Uncaught Error: Class 'Zend_Http_UserAgent_AbstractDevice' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Http\UserAgent\Spam.php:33 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Http\UserAgent\Spam.php on line 33