1366 - Incorrect integer value: '' for column `sql12320`.`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', '3db523fe758c2d89917dd74b6629e448', '3.83.188.254', '1585989063', '1585989063', '/shop/product_info.php/info/p46_Kraeuter-Senf-mit-Honig.html')

[XT SQL Error]