1366 - Incorrect integer value: '' for column `db160153`.`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', '5mg5hjtjhimilod0o81nfii0s2', '3.135.205.146', '1714114674', '1714114674', '/checkout_shipping.php')

[XT SQL Error]