1366 - Incorrect integer value: '' for column `shop_db3`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '59997c09619d29668ce655c06f44e5ba', '18.118.140.108', '1713497855', '1713497855', '/popup_content.php?coID=1&XTCsid=f14882bc03b87e844afdf80aaa54462a')

[XT SQL Error]