1366 - Incorrect integer value: '' for column `pella-ware`.`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', 'a8eedad30e00f94226666aa31b38d129', '3.236.111.234', '1710838085', '1710838085', '/account.php')

[XT SQL Error]