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', 'vgaet0t8ftghvtgjuhddtg5jc2', '3.94.150.98', '1711650816', '1711650816', '/login.php?XTCsid=vgaet0t8ftghvtgjuhddtg5jc2')

[XT SQL Error]