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', 'sg1balk9dvcgub4bhrhbhilvq4', '3.144.230.138', '1746790011', '1746790011', '/specials.php')

[XT SQL Error]