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', 'rrf2jpfnkm3br5sim78vsr0i30', '18.119.131.72', '1714024554', '1714024554', '/login.php?XTCsid=rrf2jpfnkm3br5sim78vsr0i30')

[XT SQL Error]