1366 - Incorrect integer value: '' for column `DBchUcr8hevu`.`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', 'iaq11g0l504dthburf7hhl1n63', '216.73.216.131', '1770803058', '1770803058', '/shop/shop_content.php/coID/3/content/Unsere-AGB-s/XTCsid/64f2028955666a92adb6080489d72829')

[XT SQL Error]