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', '2f285160d531396d15c884bb005e7645', '3.239.90.61', '1731016759', '1731016759', '/')

[XT SQL Error]