1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', '47e693dbfbee72e98886a36c80edf5b6', '18.226.166.214', '1714039598', '1714039598', '/shopping_cart.php/language/en')

[XT SQL Error]