1366 - Incorrect integer value: '' for column `shop_db3`.`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', 'e6eb867a0169bbb30519f82b64102f57', '3.15.3.154', '1713541927', '1713541927', '/account.php?XTCsid=12ab6c593489deceb1c19806497af77d')

[XT SQL Error]