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', '332e2c0f293c245e97962091b73e61e4', '18.218.38.125', '1714021889', '1714021889', '/shop_content.php?coID=1')

[XT SQL Error]