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', 'gbrp9brelr7cooejeh00h2uon1', '34.203.221.104', '1711666470', '1711666470', '/login.php?XTCsid=gbrp9brelr7cooejeh00h2uon1')

[XT SQL Error]