1366 - Incorrect integer value: '' for column `hbl_shop`.`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', 'qdok048g20k645nh2r31lovq07', '18.97.9.175', '1745808354', '1745808354', '/product_info.php?info=p55_800727-Schlauch-und-Decke-fuer-Schubkarrenrad.html')

[XT SQL Error]