1366 - Incorrect integer value: '' for column `creatihu_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', '5fded60ab6630eb0fda2dd2957a5f172', '13.58.197.26', '1714038745', '1714038745', '/index.php?cat=c45_Digitaldruck-Plakat-und-Fotopapi.html')

[XT SQL Error]