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', 'f5ba0fn6j0s73i9e73tt38kuj4', '18.188.23.110', '1746981190', '1746981190', '/index.php/cat/c124_Textschilder.html')

[XT SQL Error]