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', '4649d8229c436b114c27040e35b1d3e9', '44.200.77.59', '1711651891', '1711651891', '/popup_content.php?coID=1&XTCsid=26fedc8b3cbf5330d12a051fef4e732f')

[XT SQL Error]