1366 - Incorrect integer value: '' for column `jugglux_jstore`.`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', 'ffaj2n99an9oktieacdlb5tfl0', '18.204.55.168', '1597490360', '1597490360', '/shop_content.php/coID/24/product/About-us')

[XT SQL Error]