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', '7dems2o6db1a6jg1fnfgkv6vs3', '216.73.216.116', '1751327025', '1751327025', '/product_info.php?info=p38_804503-Elektrische-Getreidemuehle-AMA-50.html')

[XT SQL Error]