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', '9f08e7c8318628078d4277bdcde61404', '216.73.216.20', '1772053000', '1772053000', '/')

[XT SQL Error]