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', 'oq2gafnv7uartji11smc4n05e5', '3.239.149.56', '1711697043', '1711697043', '/login.php?XTCsid=oq2gafnv7uartji11smc4n05e5')

[XT SQL Error]