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', '2vrsjj4frjsd43jvur3fbsm700', '54.224.90.25', '1711640866', '1711640866', '/login.php?XTCsid=2vrsjj4frjsd43jvur3fbsm700')

[XT SQL Error]