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', '8t6c18umcd01gj8031u8ifhpi2', '3.149.229.253', '1713621285', '1713621285', '/login.php?XTCsid=8t6c18umcd01gj8031u8ifhpi2')

[XT SQL Error]