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', '1d7b811ecdb5e827899f6b0997bd234d', '216.73.216.115', '1761516647', '1761516647', '/shop_content.php/language/en/coID/7/content/Contact')

[XT SQL Error]