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', 'e49cdf8b81daf31e0bc441acc0f9e227', '18.118.31.247', '1713538705', '1713538705', '/product_info.php?info=p317_Easy-Tunes--C-Instrumente---HOCH-.html&XTCsid=0d9ee48a6a0ef54d70661006a72a5ec7')

[XT SQL Error]