1366 - Incorrect integer value: '' for column `abtecsho_shop`.`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', '67efpqodj5dr5ghl362ho9cp11', '216.73.216.157', '1761036020', '1761036020', '/shop_content.php/coID/50/product/Rauchmelderpflicht')

[XT SQL Error]