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', 'f7af2f9373c856c7f488838d3d4c50e1', '18.117.107.90', '1714189240', '1714189240', '/index.php/language/en/cat/c35_Countries.html/page/4')

[XT SQL Error]