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', 'eea67cf64aecb05efce95c937fc932cd', '216.73.216.8', '1758025598', '1758025598', '/products_new.php/language/en')

[XT SQL Error]