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', 'f9crjpcfb7qu6lvblv3isd78l0', '3.147.193.181', '1718729045', '1718729045', '/index.php/cat/templates/xtc5/buttons/russian/images/product_images/thumbnail_images/templates/xtc5/img/telephone2.png')

[XT SQL Error]