1366 - Incorrect integer value: '' for column `ngtkeZ_web1104_2`.`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', '6nrlep2p2asf7qmid0q0r4jjs4', '18.221.154.151', '1714150688', '1714150688', '/advanced_search.php')

[XT SQL Error]