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', 'c543143f1317ef30f9f75fc999ed42fb', '3.21.248.47', '1713585237', '1713585237', '/shop_content.php?coID=2&XTCsid=244b07160d2ebeb432977424993b1b59')

[XT SQL Error]