1366 - Incorrect integer value: '' for column `argus_xtc`.`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', 'i0a3vq96gka86k3k7ki3m5kk84', '18.205.109.82', '1568783156', '1568783156', '/shop/shop_content.php?coID=7')

[XT SQL Error]