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', 'vlga968858sbsaafrshusas1a2', '18.218.243.199', '1746952977', '1746952977', '/product_info.php/info/p6968_ISO-7010--Verhalten-bei-Unf--llen-mit-Symbolen.html')

[XT SQL Error]