Cube Cart Help

[mattycl2007]

Hello, I have recently installed cubecart and added the paypal module.

When I try to checkout using paypal, I get this message:

Fatal error: Call to undefined method PayPal_Error::SetExpressCheckout() in /home/matcl5/public_html/shop/modules/gateway/ExpressCheckout/transfer.inc.php on line 102


any help would be greatly appreciated!

thanks,

Matty