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', 'pl32la0nu19rsfjglnvflaj7j5', '18.117.182.179', '1713966432', '1713966432', '/login.php?XTCsid=pl32la0nu19rsfjglnvflaj7j5')

[XT SQL Error]