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', '2673343822cd72c6f2d6ae632d6e71ab', '3.88.60.5', '1711626164', '1711626164', '/shop_content.php/language/de/coID/23/content/Bestellablauf')

[XT SQL Error]