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', '9172d1cdd76b555cbd7f6306d0650578', '3.137.161.222', '1714151564', '1714151564', '/account.php?XTCsid=a33edcfe7a4d0f8d478a4ad1978f2859')

[XT SQL Error]