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', '7894d87668126f35381dd8b88ab485f1', '18.218.38.125', '1713525772', '1713525772', '/shop_content.php/language/de/coID/2')

[XT SQL Error]