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', '3.129.249.105', '1713579381', '1713579381', '/login.php?XTCsid=06cjg4ujf42foejl0grquj03n3')

[XT SQL Error]