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', 'f0cbb2b4c4d899065e5baf6b2eb30d81', '18.118.150.80', '1714161110', '1714161110', '/product_info.php?info=p228_Auf-Wiedersehn.html&XTCsid=12ab6c593489deceb1c19806497af77d')

[XT SQL Error]