1366 - Incorrect integer value: '' for column `shop_db3`.`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', '6fac74479896cfc5c2fe3ec0c8648c00', '18.118.12.101', '1713516256', '1713516256', '/advanced_search.php?XTCsid=638bbe3e68bb73ad3db5aa2ad24a3591')

[XT SQL Error]