After downloading all my files and backing up my DB, I uploaded all the new 1.3.8a files and started with the install, making sure that the option of 1.3.7 to 1.3.8 was checked and entered in my credentials as admin and proceeded with the upgrade, I then got the following error. What now, any suggestions?

1062 Duplicate entry 'Customers who have never completed a purchase' for key 2
in:
[INSERT INTO query_builder (query_category, query_name, query_description , query_string) VALUES ('email,newsletters', 'Customers who have never completed a purchase', 'For sending newsletter to all customers who registered but have never completed a purchase', 'SELECT DISTINCT c.customers_email_address as customers_email_address, c.customers_lastname as customers_lastname, c.customers_firstname as customers_firstname FROM TABLE_CUSTOMERS c LEFT JOIN TABLE_ORDERS o ON c.customers_id=o.customers_id WHERE o.date_purchased IS NULL');]