Mangento Paypal Express Checkout Fix

Hi, Need someone to do a quick fix for us, We run a magento stall with paypal express setup, however when someone pays, only the payers name and address details are taken - the product title and product code are not included. Please see attached screen shot for reference, (note i deliberately taken out the customer contact details for privacy concerns - the only missing component is the product details) This problem seem to be occuring randomly but we want to make sure it doesnt happen again, Need someone to help fix this up, Thanks