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', '17it11scal3kdu9pb4iedb4gb7', '54.234.184.8', '1711690692', '1711690692', '/login.php?XTCsid=17it11scal3kdu9pb4iedb4gb7')

[XT SQL Error]