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', '3e203197ed873d512fc0dc13d04d6711', '44.192.38.143', '1711700897', '1711700897', '/advanced_search.php?XTCsid=26fedc8b3cbf5330d12a051fef4e732f')

[XT SQL Error]