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', '198jij0hqoj0ho35qdgk3u10f1', '18.188.125.151', '1738999249', '1738999249', '/index.php?XTCsid=3d3p3k0ohp8dmvm3fuo7su5ts5&cat=c1188_Lautsprecher-Akku.html')

[XT SQL Error]