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', 'cd6b5733fe0ef680cc8a11497b42343e', '3.17.150.89', '1713932890', '1713932890', '/product_info.php?info=p319_Easy-Tunes--Eb-Instrumente-.html&XTCsid=2c82651c29181c0e0b67329d45f74355')

[XT SQL Error]