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', 'a72d2f643da61fb4dd7f3a9621a65a4d', '54.210.224.114', '1711715434', '1711715434', '/index.php/cat/c35_Countries.html/page/3')

[XT SQL Error]