1366 - Incorrect integer value: '' for column `CP_as15`.`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', 'dtc2lrqkkk064hb7h90olitqa1', '18.117.7.5', '1738994348', '1738994348', '/index.php?XTCsid=e08p0achgq0tssilr9o0o9bta6&cat=c342_Ladeger--t-f--r-Werkzeug-Akkus.html')

[XT SQL Error]