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', 'ad2a8fe253b83da2e78ee585a014136d', '3.145.100.100', '1722068722', '1722068722', '/')

[XT SQL Error]