1366 - Incorrect integer value: '' for column `abtecsho_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', 'eef66oepca4eo8j0789kqka844', '18.220.241.63', '1746958480', '1746958480', '/product_info.php/info/p5859_-Jockel-P-12J-Classic---12-kg---Auflade-Pulverl--scher.html')

[XT SQL Error]