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', 'pr7qmvrusdm1csp1q8s2n75be5', '3.80.211.101', '1711641134', '1711641134', '/login.php?XTCsid=pr7qmvrusdm1csp1q8s2n75be5')

[XT SQL Error]