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', 'iubnhpeifbo85iqkll73ee83p5', '44.200.101.170', '1711622972', '1711622972', '/login.php?XTCsid=iubnhpeifbo85iqkll73ee83p5')

[XT SQL Error]