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', 'fi0shs121emv4k1nq43amlra52', '3.149.243.32', '1713624012', '1713624012', '/login.php?XTCsid=fi0shs121emv4k1nq43amlra52')

[XT SQL Error]