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', '612e9c38720861a277a4f46241060840', '3.83.188.254', '1585992032', '1585992032', '/shop/index.php/manu/m1_Imkerei-Fueckel.html')

[XT SQL Error]