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', 'b53dd02b78eb7435dfa85647fc15fa2a', '216.73.216.30', '1768503184', '1768503184', '/')

[XT SQL Error]