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', 'fcf2cb60ff48c80461146461f79a9d40', '54.173.214.79', '1711632338', '1711632338', '/product_info.php?info=p228_Auf-Wiedersehn.html&XTCsid=9ed062a1d997e94e67f071e9bc3ac71b')

[XT SQL Error]