Market press upgrade orders list fatal error

Upon updating market press, the following error is displayed on my orders page immediately after the item count column. It is listed on the final order row , I am guessing because the error truncates the information being displayed and no additional rows are listed after the error.

Fatal error: Call to a member function is_download_only() on array in /home/xxxxx/xxxxxx.com/wp-content/plugins/marketpress/includes/admin/class-mp-orders-admin.php on line 1078

How do I import my existing orders from my older version of market press?