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', 'intbot0uqpklijmj2oroaf6or5', '18.118.196.177', '1738996301', '1738996301', '/index.php?XTCsid=qi1463dp261ivpfjuiqmhrofh5&cat=c710_LED-Leuchtmittel.html')

[XT SQL Error]