Fatal error: Uncaught Error: Interface 'Zend_Mail_Part_Interface' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Mail\Part.php:50
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\Zend\Mail\Part.php on line 50