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', '4723f1877b56da0a0956aa8d9b9f2e78', '3.141.202.187', '1714035676', '1714035676', '/advanced_search.php?XTCsid=4a502cf522b059da09cfca377185d405')

[XT SQL Error]