Actually there's a set of errors on each completed order, from the same URL specified above
Code:
SQL query : SELECT COUNT(id) FROM xcart_address_book WHERE userid='0' AND addressid='0' LIMIT 1
SQL query : SELECT COUNT(id) FROM xcart_address_book WHERE userid=■ AND addressid=■ LIMIT 1
SQL query : SELECT COUNT(id) FROM xcart_address_book WHERE userid='0' AND addressid='B' LIMIT 1
SQL query : SELECT COUNT(id) FROM xcart_address_book WHERE userid='0' AND addressid='S' LIMIT 1