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', 'r9nho5kege8m8qm6i0rr6ud5n5', '34.204.3.195', '1711658244', '1711658244', '/login.php?XTCsid=r9nho5kege8m8qm6i0rr6ud5n5')

[XT SQL Error]