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', '1449855hcm2gko5eq7nmqvh065', '18.116.87.60', '1718727117', '1718727117', '/index.php/cat/templates/xtc5/images/product_images/thumbnail_images/templates/xtc5/img/logo.png')

[XT SQL Error]