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', '0c4ce0b2f53502173d2371bcef09a7fc', '44.213.80.174', '1710842972', '1710842972', '/index.php/cat/c29_Continents.html')

[XT SQL Error]