1366 - Incorrect integer value: '' for column `abtecsho_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', 'om0tvkjk5mjpbkvmv2n9uv1m51', '3.145.165.235', '1746782037', '1746782037', '/product_info.php/info/p766_ISO-7010-W-023----tzende-Stoffe.html')

[XT SQL Error]