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', '4d505214d558bc143d993bf929d99379', '216.73.216.191', '1758147461', '1758147461', '/shop_content.php/language/en/coID/8/content/Sitemap')

[XT SQL Error]