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', '8prmh3qo8f7sop7cq6q6mprq05', '3.83.81.42', '1711630766', '1711630766', '/login.php?XTCsid=8prmh3qo8f7sop7cq6q6mprq05')

[XT SQL Error]