1366 - Incorrect integer value: '' for column `hbl_shop`.`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', 'nbragej6r9v5kh17b9rvmbe9u2', '18.225.56.116', '1746962660', '1746962660', '/product_info.php?info=p567_801878-Badeofen-Oberteil--drucklos--ohne-Mischbatterie.html')

[XT SQL Error]