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', 'c1a9fff244de67ee1aa0273168abb5f9', '174.129.93.231', '1711718429', '1711718429', '/create_account.php')

[XT SQL Error]