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', 'vtbn2ql9sao632flrooqs13563', '18.191.5.239', '1713887065', '1713887065', '/login.php?XTCsid=vtbn2ql9sao632flrooqs13563')

[XT SQL Error]