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', '815568bfd341aaebe8e3d6a919c013d1', '18.221.85.33', '1713416851', '1713416851', '/shop_content.php/language/de/coID/8/content/Sitemap')

[XT SQL Error]