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', 'q3rgr5mditknb82d853ci43tj6', '18.218.186.133', '1718734520', '1718734520', '/index.php/cat/admin/images/icons/templates/xtc5/img/templates/xtc5/stylesheet.css')

[XT SQL Error]