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', 'd38f7b9bac55a94394b560c845e56594', '3.141.27.244', '1714076601', '1714076601', '/product_info.php?info=p298_Bei-uns-in-Bayern.html&XTCsid=9ed062a1d997e94e67f071e9bc3ac71b')

[XT SQL Error]