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', 'sh8oc94apvrl8ja7tq4hfv0km6', '3.139.108.138', '1746954756', '1746954756', '/product_info.php/info/p6157_Textschild--F--r-Fettbr--nde.html')

[XT SQL Error]