1366 - Incorrect integer value: '' for column `shop_db3`.`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', 'cbfaf4023fcef56e39c7b51b74e905b3', '18.188.20.56', '1713271227', '1713271227', '/product_info.php?info=p298_Bei-uns-in-Bayern.html&XTCsid=12ab6c593489deceb1c19806497af77d')

[XT SQL Error]