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