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', 'b2me1p35lnnmqf1h7io2nngj63', '3.145.67.216', '1718734191', '1718734191', '/index.php/cat/admin/images/icons/admin/images/icons/images/product_images/thumbnail_images')

[XT SQL Error]