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', 'me9n17i17gttc952bo9f2eujq2', '3.137.222.1', '1746996581', '1746996581', '/index.php/cat/c5154_Metall-Erzeugnisse.html')

[XT SQL Error]