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', '72df081386e62981944220ce43430f23', '3.145.42.94', '1714073279', '1714073279', '/checkout_shipping.php?XTCsid=4a502cf522b059da09cfca377185d405')

[XT SQL Error]