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', 'vls8lilnpv3a947rn5f26of3l1', '3.135.206.96', '1718729054', '1718729054', '/index.php/cat/images/product_images/thumbnail_images/templates/xtc5/img/admin/images/icons')

[XT SQL Error]