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', 'obhtkpko9l7stnq5n44r0gd7r5', '18.97.14.84', '1749966582', '1749966582', '/index.php?cat=c4_Gefluegelzuchtbedarf.html')

[XT SQL Error]