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', '6877c7e10f136156e431fd68283dab65', '3.15.6.77', '1713929727', '1713929727', '/advanced_search.php?XTCsid=42f56783889520011baaa0c109b43aca')

[XT SQL Error]