1366 - Incorrect integer value: '' for column `pella-ware`.`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', '52c41d227f89a56a93a74e7c37a13c93', '18.222.115.179', '1715135241', '1715135241', '/shop_content.php?coID=3')

[XT SQL Error]