Hi
I use
mysql 5.0.37
zen cart 1.3.7.

acquiring a gift certificate and confirming the order I have the following error

1366 Incorrect integer value: '' for column 'delivery_address_format_id' at row 1
in:
[INSERT INTO orders (customers_id, customers_name, customers_company, customers_street_address, customers_suburb, customers_city, customers_postcode, customers_state, customers_country, customers_telephone, customers_email_address, customers_address_format_id, delivery_name, delivery_company, delivery_street_address, delivery_suburb, delivery_city, delivery_postcode, delivery_state, delivery_country, delivery_address_format_id, billing_name, billing_company, billing_street_address, billing_suburb, billing_city, billing_postcode, billing_state, billing_country, billing_address_format_id, payment_method, payment_module_code, shipping_method, shipping_module_code, coupon_code, cc_type, cc_owner, cc_number, cc_expires, date_purchased, orders_status, order_total, order_tax, currency, currency_value, ip_address) VALUES ('4',.........

someone can help me
Thanks