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', 'd2198ee28bad8f06e119b4b06030f5c4', '3.139.233.43', '1714088668', '1714088668', '/product_info.php?info=p41_Schoener-Abend--Polka-.html&XTCsid=f88a86bf4ffc9ff2be90f468933efb62')

[XT SQL Error]