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', 'v17hetk5706fberh8ctbi8pjj6', '34.238.143.70', '1711666348', '1711666348', '/login.php?XTCsid=v17hetk5706fberh8ctbi8pjj6')

[XT SQL Error]