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', '248194e87109428afd461bfe72e7f560', '18.222.107.172', '1743738139', '1743738139', '/')

[XT SQL Error]