1366 - Incorrect integer value: '' for column `magickland`.`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', 'nj84vjksdchs67p1akqbppejt7', '18.225.235.74', '1718730390', '1718730390', '/index.php/cat/images/product_images/thumbnail_images/images/icons/thumbnail_images/admin')

[XT SQL Error]