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', '5e0ib5j233br35u99v3fmvh3a1', '18.216.129.37', '1746952844', '1746952844', '/index.php/manufacturers_id/17/page/2')

[XT SQL Error]