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', '49568d6b3927b6b79965a68855e65c97', '18.191.202.72', '1713614531', '1713614531', '/product_info.php?info=p248_Memory-Of-Spain.html&XTCsid=7e0b503625393bfa750f9a995afb0aa8')

[XT SQL Error]