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', '28madnqcqsqt7vhk43d6av3fs3', '3.136.154.103', '1713947339', '1713947339', '/address_book.php')

[XT SQL Error]