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', 'jsboup0705hsi4m4snerlr72q0', '3.144.84.174', '1738997099', '1738997099', '/index.php?XTCsid=mkl8qqqorbnshicuaf45rnrdo2&cat=c527_Digital-Kamera-Zubeh--r.html')

[XT SQL Error]