1366 - Incorrect integer value: '' for column `schablone_1`.`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', '11ae8d76131d99527c6dcf3c2988d3cd', '18.97.9.175', '1733084852', '1733084852', '/shop/index.php')

[XT SQL Error]