Paypal express checkout problem

[d4rkcloud]

Hi,

I have a site made with joomla 3.4.7, PHP 5.6.16 and virtuemart, and this is the live site:
http://www.nonsoloflair.it
When I try to pay with Paypal express checkout, I always get the same error:
Error updating cartNow I downgraded everything to paypal classic, but I need to understand what's the problem.
Anyone can help?

Thanks guys!

[loppan]

Hi d4rkcloud, sorry for not being able to provide a solution, however perhaps I can "comfort" you a little bit letting you know that I have the same problem, however, checkout still works for me. Does this error prevent you from even checking out? Checkout works for me, at least in sandbox mode, despite the "Error updating cart" message.

I was assuming this was related to my other issue explained here : http://forum.virtuemart.net/index.php?topic=132570.0 , but perhaps it's not...

Not really sure where to go from here :/.