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', '0e54a2990704d5c8cdf491d55888c15c', '3.16.83.150', '1713861566', '1713861566', '/index.php/cat/c29_Continents.html')

[XT SQL Error]