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', 'd17593f5234a58105acfb7a96a1fa1bf', '3.83.188.254', '1585992591', '1585992591', '/shop/index.php/cat/c24_Pflegeprodukte.html')

[XT SQL Error]