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', '8b1c15bbc0bf2c2851efd67a602420d7', '3.83.188.254', '1585987021', '1585987021', '/shop/product_info.php/info/p49_Natur-Senf-mit-Honig.html')

[XT SQL Error]