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', 'rdp1iriend3rfq8f9u8ufabev2', '18.225.209.95', '1713520444', '1713520444', '/login.php?XTCsid=rdp1iriend3rfq8f9u8ufabev2')

[XT SQL Error]