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', '3651d52be9f62f977f48f8d10f27bd26', '216.73.217.179', '1785435094', '1785435094', '/')

[XT SQL Error]