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', '3c3dcded9abe566c8eb5abe7bcba05f7', '3.95.233.107', '1710838634', '1710838634', '/advanced_search.php')

[XT SQL Error]