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', '335dedaa2e7c1c65c465d13facdd9367', '35.175.246.88', '1711704482', '1711704482', '/product_info.php?language=en&info=p248_Memory-Of-Spain.html&XTCsid=c7f035e02971a7df32ae13cabef322ff')

[XT SQL Error]