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', '5evfi2kk21u9in689i1h3nbl62', '3.149.26.246', '1713498236', '1713498236', '/login.php?XTCsid=5evfi2kk21u9in689i1h3nbl62')

[XT SQL Error]