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', 'ef99fbe658494104ce7558ba52c860c5', '216.73.216.58', '1770671785', '1770671785', '/')

[XT SQL Error]