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', '06cjg4ujf42foejl0grquj03n3', '52.90.131.200', '1711693463', '1711693463', '/login.php?XTCsid=06cjg4ujf42foejl0grquj03n3')

[XT SQL Error]