Fatal error: Uncaught Error: Class 'Zend_Oauth_Signature_SignatureAbstract' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Oauth\Signature\Hmac.php:34
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Oauth\Signature\Hmac.php on line 34