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', '667rbacm43v8302ap8tmpbt7h7', '100.24.12.23', '1711706284', '1711706284', '/login.php?XTCsid=667rbacm43v8302ap8tmpbt7h7')

[XT SQL Error]