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', '361d47b38f3187e0b9c23be1c7b36a3b', '18.219.22.169', '1714095545', '1714095545', '/product_info.php?info=p245_Drunt-am-Bergsee.html&XTCsid=887fff7384999e8c958f14224ebe6b7c')

[XT SQL Error]