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', '5806b6f006f61de142f5dd5384f3187b', '13.59.218.147', '1714148517', '1714148517', '/shopping_cart.php?XTCsid=30c973abda9994cdcaa402f38a62d49a')

[XT SQL Error]