1366 - Incorrect integer value: '' for column `creatihu_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', '8163533bf5abdb63783365b104fdad45', '44.200.101.170', '1711677658', '1711677658', '/product_info.php?info=p325_Selbstklebende-Folie--Wall-Art-Digital.html')

[XT SQL Error]