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', 'b390q9iudd0gtp5lsehg19su35', '44.223.39.199', '1711699268', '1711699268', '/login.php?XTCsid=b390q9iudd0gtp5lsehg19su35')

[XT SQL Error]