Thanks for the reply,

Seems to be a network issue... now it seems to work on most products.

I just noticed something else... with terms of product quantities sometimes customer will order 15 + items of the same type but i just did a test and ordered 10+ items and it kept giving me the same error so i lowered it to 9 of the same item and it worked.... i then tried i different product and same thing you order 10 or more and you get the same error, you order 9 or less and it works.... and on several other items same error.