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', 'dk2ienhse8oiapg4mkecu33je5', '18.218.195.15', '1746963741', '1746963741', '/product_info.php/info/p6670_PB6LJM--Pulver-10-L--scheinheiten.html')

[XT SQL Error]