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', '43fb1e7247d6d7a4dc324ea2d9d14e51', '18.222.37.169', '1714134383', '1714134383', '/product_info.php?info=p319_Easy-Tunes--Eb-Instrumente-.html&XTCsid=c7f035e02971a7df32ae13cabef322ff')

[XT SQL Error]