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', '1b5ffa9ef4781385964ad18c74f50138', '44.220.41.140', '1711628251', '1711628251', '/shop_content.php?coID=4&XTCsid=c00a13a977272d3659dd7fe5a5f758e9')

[XT SQL Error]