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', '91e8ca0b5162f777b7f12b028a1bb1a1', '18.189.145.20', '1713532398', '1713532398', '/shop_content.php?coID=1&XTCsid=0d9ee48a6a0ef54d70661006a72a5ec7')

[XT SQL Error]