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', '8bf98atasb70clra0cf883g5a4', '18.224.63.20', '1738996032', '1738996032', '/index.php?XTCsid=e08p0achgq0tssilr9o0o9bta6&cat=c35_Ladeger--t-f--r-Kameras-mit-Akku.html')

[XT SQL Error]